USPC Patent Classifications

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Class 455 telecommunications
uspcdescription
455/1455 telecommunications/(1) interference signal transmission (e.g., jamming)
455/2.01455 telecommunications/(2.01) audience survey or program distribution use accounting
455/3.01455 telecommunications/(3.01) wireless distribution system
455/3.02455 telecommunications/(3.01) wireless distribution system (3.02) receiver for satellite broadcast
455/3.03455 telecommunications/(3.01) wireless distribution system (3.03) remote control of distribution
455/3.04455 telecommunications/(3.01) wireless distribution system (3.03) remote control of distribution (3.04) with subscriber selection or switching
455/3.05455 telecommunications/(3.01) wireless distribution system (3.05) two-way
455/3.06455 telecommunications/(3.01) wireless distribution system (3.06) combined with diverse art device (e.g., audio/sound or entertainment system)
455/400455 telecommunications/(400) having single-channel telephone carrier
455/401455 telecommunications/(400) having single-channel telephone carrier (401) including call signaling (e.g., ringing, off-hook, dialing)
455/402455 telecommunications/(400) having single-channel telephone carrier (402) over power line
455/403455 telecommunications/(403) radiotelephone system
455/404.1455 telecommunications/(403) radiotelephone system (404.1) emergency or alarm communication
455/404.2455 telecommunications/(403) radiotelephone system (404.1) emergency or alarm communication (404.2) location monitoring
455/405455 telecommunications/(403) radiotelephone system (405) usage measurement
455/406455 telecommunications/(403) radiotelephone system (405) usage measurement (406) billing
455/407455 telecommunications/(403) radiotelephone system (405) usage measurement (406) billing (407) at subscriber unit
455/408455 telecommunications/(403) radiotelephone system (405) usage measurement (406) billing (408) at remote station
455/409455 telecommunications/(403) radiotelephone system (405) usage measurement (409) rental
455/410455 telecommunications/(403) radiotelephone system (410) security or fraud prevention
455/411455 telecommunications/(403) radiotelephone system (410) security or fraud prevention (411) privacy, lock-out, or authentication
455/412.1455 telecommunications/(403) radiotelephone system (412.1) message storage or retrieval
455/412.2455 telecommunications/(403) radiotelephone system (412.1) message storage or retrieval (412.2) having message notification
455/413455 telecommunications/(403) radiotelephone system (412.1) message storage or retrieval (413) voice mail
455/414.1455 telecommunications/(403) radiotelephone system (414.1) special service
455/414.2455 telecommunications/(403) radiotelephone system (414.1) special service (414.2) user location independent information retrieval
455/414.3455 telecommunications/(403) radiotelephone system (414.1) special service (414.2) user location independent information retrieval (414.3) based on request (e.g., news, weather, etc.)
455/414.4455 telecommunications/(403) radiotelephone system (414.1) special service (414.2) user location independent information retrieval (414.4) format conversion (e.g., text, audio, etc.)
455/415455 telecommunications/(403) radiotelephone system (414.1) special service (415) caller identification
455/416455 telecommunications/(403) radiotelephone system (414.1) special service (416) call conferencing
455/417455 telecommunications/(403) radiotelephone system (414.1) special service (417) call diversion
455/418455 telecommunications/(403) radiotelephone system (418) programming control
455/419455 telecommunications/(403) radiotelephone system (418) programming control (419) remote programming control
455/420455 telecommunications/(403) radiotelephone system (418) programming control (419) remote programming control (420) control of another apparatus
455/421455 telecommunications/(403) radiotelephone system (421) out-of-range indication
455/422.1455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system
455/423455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (423) diagnostic testing, malfunction indication, or electrical condition measurement
455/424455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (423) diagnostic testing, malfunction indication, or electrical condition measurement (424) system equipment
455/425455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (423) diagnostic testing, malfunction indication, or electrical condition measurement (425) subscriber equipment
455/426.1455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (426.1) including other radio communication system (e.g., cordless telephone, paging, trunking, etc.)
455/426.2455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (426.2) wireless service for fixed premises equipment (e.g., wireless local loop (wll) telco emulator, etc.)
455/427455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (427) space satellite
455/428455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (427) space satellite (428) switching or routing
455/429455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (427) space satellite (429) cell projection
455/430455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (427) space satellite (430) ground station control
455/431455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (431) airborne or aircraft
455/432.1455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (432.1) roaming
455/432.2455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (432.1) roaming (432.2) system format conversion
455/432.3455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (432.1) roaming (432.3) service profile
455/433455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (432.1) roaming (433) home location registration (hlr) or visitor location registration (vlr) detail
455/434455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (434) control or access channel scanning
455/435.1455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (435.1) registration
455/435.2455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (435.1) registration (435.2) system selection
455/435.3455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (435.1) registration (435.2) system selection (435.3) based on priority
455/436455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (436) handoff
455/437455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (436) handoff (437) mobile assisted or initiated
455/438455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (436) handoff (438) serving site initiated
455/439455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (436) handoff (439) handoff initiated by another source (e.g., target, user initiated, mobile switching center (msc), or mobile telephone switching office (mtso), etc.)
455/440455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (436) handoff (440) based upon unit location
455/441455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (436) handoff (441) based upon unit velocity
455/442455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (436) handoff (442) soft handoff
455/443455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (436) handoff (443) overlapping cells
455/444455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (436) handoff (444) between macro and micro cells
455/445455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (445) call routing (e.g., to prevent backhaul, routing efficiency, least cost, or alternate routing)
455/446455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (446) including cell planning or layout
455/447455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (446) including cell planning or layout (447) frequency reuse scheme
455/448455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (446) including cell planning or layout (448) co-located systems
455/449455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (446) including cell planning or layout (449) hierarchical cell structure
455/450455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (450) channel allocation
455/451455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (450) channel allocation (451) hybrid allocation
455/452.1455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (450) channel allocation (452.1) dynamic allocation
455/452.2455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (450) channel allocation (452.1) dynamic allocation (452.2) based on service quality (e.g., bandwidth, etc.)
455/453455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (450) channel allocation (453) load balancing
455/454455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (450) channel allocation (454) spectrum sharing for different type of system (e.g., point-to-point microwave, television, etc.)
455/455455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (455) channel seizing
455/456.1455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (456.1) location monitoring
455/456.2455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (456.1) location monitoring (456.2) based on request signal
455/456.3455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (456.1) location monitoring (456.3) position based personal service
455/456.4455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (456.1) location monitoring (456.4) quiet or transmission prevention mode
455/456.5455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (456.1) location monitoring (456.5) at system equipment (i.e., base station)
455/456.6455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (456.1) location monitoring (456.6) at remote station (i.e., mobile station)
455/457455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (456.1) location monitoring (457) location display
455/458455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (458) specific paging technique
455/459455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (458) specific paging technique (459) meet-me system
455/460455 telecommunications/(403) radiotelephone system (422.1) zoned or cellular telephone system (458) specific paging technique (460) auto-dialing
455/461455 telecommunications/(403) radiotelephone system (461) including personal numbering system (i.e., intelligent network for subscriber tracking or follow-me subscriber feature)
455/462455 telecommunications/(403) radiotelephone system (462) including private cordless extension system
455/463455 telecommunications/(403) radiotelephone system (462) including private cordless extension system (463) multi-users
455/464455 telecommunications/(403) radiotelephone system (462) including private cordless extension system (464) channel selection or allocation
455/465455 telecommunications/(403) radiotelephone system (465) including public cordless extension system
455/466455 telecommunications/(403) radiotelephone system (466) auxiliary data signaling (e.g., short message service (sms))
455/7455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information)
455/8455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (8) failure compensation (e.g., spare channel)
455/9455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (9) monitoring
455/10455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (9) monitoring (10) fading compensation
455/11.1455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (11.1) portable or mobile repeater
455/12.1455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (11.1) portable or mobile repeater (12.1) space satellite
455/13.1455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (11.1) portable or mobile repeater (12.1) space satellite (13.1) with plural repeater or relay systems
455/13.2455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (11.1) portable or mobile repeater (12.1) space satellite (13.2) with synchronizing of satellites or system
455/13.3455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (11.1) portable or mobile repeater (12.1) space satellite (13.3) with antenna feed network or multiple antenna switching
455/13.4455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (11.1) portable or mobile repeater (12.1) space satellite (13.4) power control
455/14455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (14) with transmission line
455/15455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (15) two separate way transmission
455/16455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (15) two separate way transmission (16) simultaneous using plural repeaters at each location
455/17455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (17) plural modulated carriers
455/18455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (18) with delay or recording
455/19455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (19) common antenna
455/20455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (20) with frequency conversion
455/21455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (20) with frequency conversion (21) with demodulator
455/22455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (20) with frequency conversion (22) plural conversion stages
455/23455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (23) frequency or phase modulation
455/24455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (24) transmitter/receiver feedback compensation
455/25455 telecommunications/(7) carrier wave repeater or relay system (i.e., retransmission of same information) (25) directive antenna
455/26.1455 telecommunications/(26.1) use or access blocking (e.g., locking switch)
455/39455 telecommunications/(39) transmitter and receiver at separate stations
455/40455 telecommunications/(39) transmitter and receiver at separate stations (40) earth or water medium
455/41.1455 telecommunications/(39) transmitter and receiver at separate stations (41.1) near field (i.e., inductive or capacitive coupling)
455/41.2455 telecommunications/(39) transmitter and receiver at separate stations (41.2) short range rf communication
455/41.3455 telecommunications/(39) transmitter and receiver at separate stations (41.2) short range rf communication (41.3) to output device
455/42455 telecommunications/(39) transmitter and receiver at separate stations (42) frequency or phase modulation
455/43455 telecommunications/(39) transmitter and receiver at separate stations (42) frequency or phase modulation (43) with modification of frequencies of analog signal passed (e.g., pre-emphasis and de-emphasis)
455/44455 telecommunications/(39) transmitter and receiver at separate stations (42) frequency or phase modulation (44) with stated modulation index
455/45455 telecommunications/(39) transmitter and receiver at separate stations (42) frequency or phase modulation (45) via subcarrier
455/46455 telecommunications/(39) transmitter and receiver at separate stations (46) suppressed carrier wave system
455/47455 telecommunications/(39) transmitter and receiver at separate stations (47) single or vestigial sideband system
455/48455 telecommunications/(39) transmitter and receiver at separate stations (48) inverted sideband
455/500455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations)
455/501455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (501) noise, distortion, or singing reduction
455/502455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (501) noise, distortion, or singing reduction (502) synchronized stations
455/503455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (501) noise, distortion, or singing reduction (502) synchronized stations (503) simulcast system
455/504455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (501) noise, distortion, or singing reduction (504) fading compensation
455/505455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (501) noise, distortion, or singing reduction (504) fading compensation (505) due to weather
455/506455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (501) noise, distortion, or singing reduction (504) fading compensation (506) rayleigh or multipath fading
455/507455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.)
455/508455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (508) having console
455/509455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (509) channel allocation
455/510455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (509) channel allocation (510) plural requests (e.g., retries)
455/511455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (509) channel allocation (511) control channel/voice channel conversion
455/512455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (509) channel allocation (512) based on priority
455/513455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (509) channel allocation (513) ranking (e.g., based on signal strength, etc.)
455/514455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (509) channel allocation (514) having storage detail
455/515455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (515) control channel monitoring (i.e., paging or access channel signaling) for system access
455/516455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (516) channel seizing
455/517455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (517) to or from mobile station
455/518455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (517) to or from mobile station (518) having talk group
455/519455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (517) to or from mobile station (518) having talk group (519) talk group forming (e.g., dynamic regrouping, talk group assignment)
455/520455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (517) to or from mobile station (518) having talk group (520) on-site or multi-site trunking
455/521455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (517) to or from mobile station (521) emergency dispatch or response
455/522455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (517) to or from mobile station (522) transmission power control technique
455/523455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (517) to or from mobile station (523) using radiating transmission line
455/524455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (517) to or from mobile station (524) multiple base stations
455/525455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (517) to or from mobile station (524) multiple base stations (525) base station selection
455/526455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (507) central station (e.g., master, etc.) (526) plural receivers tuned to common frequency
455/527455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (527) break-in or priority override
455/528455 telecommunications/(39) transmitter and receiver at separate stations (500) plural transmitters or receivers (i.e., more than two stations) (528) lockout or busy-idle signaling
455/59455 telecommunications/(39) transmitter and receiver at separate stations (59) single message via plural carrier wave transmission
455/60455 telecommunications/(39) transmitter and receiver at separate stations (59) single message via plural carrier wave transmission (60) different phases of same frequency carrier
455/61455 telecommunications/(39) transmitter and receiver at separate stations (61) single message via plural modulation of single carrier
455/62455 telecommunications/(39) transmitter and receiver at separate stations (62) optimum frequency selection
455/63.1455 telecommunications/(39) transmitter and receiver at separate stations (63.1) distortion, noise, or other interference prevention, reduction, or compensation
455/63.2455 telecommunications/(39) transmitter and receiver at separate stations (63.1) distortion, noise, or other interference prevention, reduction, or compensation (63.2) system with hierarchical coverage areas
455/63.3455 telecommunications/(39) transmitter and receiver at separate stations (63.1) distortion, noise, or other interference prevention, reduction, or compensation (63.3) frequency switching
455/63.4455 telecommunications/(39) transmitter and receiver at separate stations (63.1) distortion, noise, or other interference prevention, reduction, or compensation (63.4) directional antenna
455/64455 telecommunications/(39) transmitter and receiver at separate stations (63.1) distortion, noise, or other interference prevention, reduction, or compensation (64) plasma source or barrier
455/65455 telecommunications/(39) transmitter and receiver at separate stations (63.1) distortion, noise, or other interference prevention, reduction, or compensation (65) anti-multipath
455/66.1455 telecommunications/(39) transmitter and receiver at separate stations (66.1) having diverse art device
455/67.11455 telecommunications/(39) transmitter and receiver at separate stations (67.11) having measuring, testing, or monitoring of system or part
455/67.12455 telecommunications/(39) transmitter and receiver at separate stations (67.11) having measuring, testing, or monitoring of system or part (67.12) using a chamber (e.g., room testing or audio surveillance, etc.)
455/67.13455 telecommunications/(39) transmitter and receiver at separate stations (67.11) having measuring, testing, or monitoring of system or part (67.13) noise, distortion, or unwanted signal detection (e.g., quality control, etc.)
455/67.14455 telecommunications/(39) transmitter and receiver at separate stations (67.11) having measuring, testing, or monitoring of system or part (67.14) using a test signal
455/67.15455 telecommunications/(39) transmitter and receiver at separate stations (67.11) having measuring, testing, or monitoring of system or part (67.15) of a microwave link or system
455/67.16455 telecommunications/(39) transmitter and receiver at separate stations (67.11) having measuring, testing, or monitoring of system or part (67.16) phase measuring (e.g., group delay, propagation effect, etc.)
455/67.7455 telecommunications/(39) transmitter and receiver at separate stations (67.11) having measuring, testing, or monitoring of system or part (67.7) with indication (e.g., visual or voice signalling, etc.)
455/68455 telecommunications/(39) transmitter and receiver at separate stations (68) with control signal
455/69455 telecommunications/(39) transmitter and receiver at separate stations (68) with control signal (69) transmitter controlled by signal feedback from receiver
455/701455 telecommunications/(39) transmitter and receiver at separate stations (68) with control signal (701) tone coded squelch
455/702455 telecommunications/(39) transmitter and receiver at separate stations (68) with control signal (701) tone coded squelch (702) plural tones
455/703455 telecommunications/(39) transmitter and receiver at separate stations (68) with control signal (701) tone coded squelch (702) plural tones (703) difference frequency
455/70455 telecommunications/(39) transmitter and receiver at separate stations (68) with control signal (70) receiver control signal originates at message transmitter
455/71455 telecommunications/(39) transmitter and receiver at separate stations (68) with control signal (70) receiver control signal originates at message transmitter (71) frequency control
455/72455 telecommunications/(39) transmitter and receiver at separate stations (68) with control signal (70) receiver control signal originates at message transmitter (72) for compression and expansion of message signal (i.e., companding)
455/73455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver)
455/74455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (74) convertible (e.g., to diverse art device)
455/74.1455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (74) convertible (e.g., to diverse art device) (74.1) cordless/corded conversion
455/75455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (75) with frequency stabilization (e.g., automatic frequency control)
455/76455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (75) with frequency stabilization (e.g., automatic frequency control) (76) synthesizer
455/77455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (77) with tuning
455/78455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (78) with transmitter-receiver switching or interaction prevention
455/79455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (78) with transmitter-receiver switching or interaction prevention (79) automatic (e.g., voice operated)
455/80455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (78) with transmitter-receiver switching or interaction prevention (79) automatic (e.g., voice operated) (80) with distributed parameter coupling
455/81455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (78) with transmitter-receiver switching or interaction prevention (79) automatic (e.g., voice operated) (80) with distributed parameter coupling (81) waveguide
455/82455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (78) with transmitter-receiver switching or interaction prevention (79) automatic (e.g., voice operated) (82) common antenna
455/83455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (78) with transmitter-receiver switching or interaction prevention (83) single antenna switched between transmitter and receiver
455/84455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (84) with a common signal processing stage
455/85455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (84) with a common signal processing stage (85) transmitter oscillator used as detector
455/86455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (84) with a common signal processing stage (86) transmitter oscillator used as local oscillator
455/87455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (84) with a common signal processing stage (86) transmitter oscillator used as local oscillator (87) tunable or variable
455/88455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (88) transceiver controlling a separate transceiver or receiver
455/550.1455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail
455/551455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (551) number assignment module (nam) detail
455/552.1455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (552.1) operable on more than one system
455/553.1455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (552.1) operable on more than one system (553.1) radiotelephone having plural transceivers (e.g., for analog and digital, trunking and cellular, etc.)
455/554.1455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (554.1) remote private branch exchange (pbx) with wireless link to landline
455/554.2455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (554.2) equipment detail for providing wireless link to fixed equipment (e.g., wll, telco emulator, etc.)
455/555455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (555) wireless private branch exchange (pbx) (i.e., wireless link to extension unit)
455/556.1455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (556.1) integrated with other device
455/556.2455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (556.1) integrated with other device (556.2) personal digitial assistant
455/557455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (557) interface attached device (e.g., interface with modem, facsimile, computer, etc.)
455/558455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (557) interface attached device (e.g., interface with modem, facsimile, computer, etc.) (558) card control element
455/559455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (557) interface attached device (e.g., interface with modem, facsimile, computer, etc.) (559) smart cable
455/560455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (560) switching unit detail (e.g., mobile telephone switching office (mtso), base station controller (bsc), etc.)
455/561455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (561) base station detail
455/562.1455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (561) base station detail (562.1) having specific antenna arrangement
455/563455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (563) having voice recognition or synthesization
455/564455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (564) auto-dialing or repertory dialing (e.g., using bar code, etc.)
455/565455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (565) restrictive dialing circuitry
455/566455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (566) having display
455/567455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (567) call alerting
455/569.1455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (569.1) hands-free or loudspeaking arrangement
455/569.2455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (569.1) hands-free or loudspeaking arrangement (569.2) in vehicle
455/570455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (569.1) hands-free or loudspeaking arrangement (570) noise suppression or echo cancellation
455/571455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (571) power booster
455/572455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (572) power supply
455/573455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (572) power supply (573) battery charging
455/574455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (572) power supply (574) power conservation
455/575.1455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (575.1) housing or support
455/575.2455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (575.1) housing or support (575.2) headgear
455/575.3455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (575.1) housing or support (575.3) foldable type
455/575.4455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (575.1) housing or support (575.4) slidable type
455/575.5455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (575.1) housing or support (575.5) antenna shielding
455/575.6455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (575.1) housing or support (575.6) attached or connected to user
455/575.7455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (575.1) housing or support (575.7) having specific antenna arrangement
455/575.8455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (575.1) housing or support (575.8) protective cover
455/575.9455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (550.1) radiotelephone equipment detail (575.1) housing or support (575.9) in vehicle
455/90.1455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (90.1) having particular application (e.g., avalanche victim assistance) of a transceiver
455/90.2455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (90.2) having particular configuration (e.g., c.b., or walkie-talkie) of a transceiver
455/90.3455 telecommunications/(73) transmitter and receiver at same station (e.g., transceiver) (90.3) having particular housing or support of a transceiver
455/91455 telecommunications/(91) transmitter
455/92455 telecommunications/(91) transmitter (92) remote control of a transmitter
455/93455 telecommunications/(91) transmitter (93) convertible to different type (e.g., am to fm)
455/94455 telecommunications/(91) transmitter (94) alternator
455/95455 telecommunications/(91) transmitter (95) mobile or portable
455/96455 telecommunications/(91) transmitter (95) mobile or portable (96) transmitter ejected from moving vehicle
455/97455 telecommunications/(91) transmitter (95) mobile or portable (97) with antenna ejection or external support
455/98455 telecommunications/(91) transmitter (95) mobile or portable (98) with aircraft, satellite, or projectile
455/99455 telecommunications/(91) transmitter (95) mobile or portable (99) with vehicle
455/100455 telecommunications/(91) transmitter (95) mobile or portable (100) body attached or connected
455/101455 telecommunications/(91) transmitter (101) diversity
455/102455 telecommunications/(91) transmitter (102) plural modulation
455/103455 telecommunications/(91) transmitter (103) plural separate transmitters or channels
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