Matches 1 - 28 out of 28
Match Document Document Title
7301987 Background processing and searching for a communication channel  
A method including searching for a communication channel by activating a receiver having a radio frequency (RF) module and a baseband module for storing a portion of received signals within a first...
7085308 Searching in dual-mode communications system  
A method including searching for a pilot signal of a second communications system while retaining the connection with a first communications system.
6546245 Inverted code sequence cordless signaling  
A method and apparatus to perform a signaling protocol between a base station and a remote handset of a digital cordless telephone to simplify the digital cordless telephone. A pseudo-noise (PN)...
6408166 Method for controlling gain of transmission signal  
In accordance with the present invention, a method is disclosed for preventing noise spikes due to abrupt changes of a transmission signal in a cordless telephone. The method is comprised of two...
RE37571 Subscriber RF telephone system having distributed channel switching capability  
A radio communication system for processing information signals received from telephone trunk lines for transmission over a plurality of RF subscriber channels is disclosed. The system includes a...
6050491 Data collection terminal with components mounted on printed circuit boards therein  
A plurality of printed circuit boards is mounted within a housing of a data collection terminal. The boards lie in respective planes generally parallel to the plane of a top wall of the housing....
5963877 Telephone call receiver indicator  
Implemented on a vehicle, a communication system used to notify a passenger of an incoming telephone call. The communication system includes a telephony system assigned to one or more passenger(s)...
5870453 Automatic control system for a remotely controllable sound producing device  
Electronic circuitry is provided that is operative to detect telephone usage or doorbell activation, whereupon the circuitry causes a command signal, such as a muting signal recognizable by an...
5845201 Subscriber RF telephone system having distributed channel switching capability  
A radio communication system for processing information signals received from telephone trunk lines for transmission over a plurality of RF subscriber channels is disclosed. The system includes a...
5420907 Automatic control system for a remotely controllable sound producing device  
Electronic circuitry is provided that is operative to detect telephone usage or doorbell activation, whereupon the circuitry causes a command signal, such as a muting signal recognizable by an...
5236016 Cable-guide assembly of plastic tubes joined by webs  
A cable-guide assembly of particular utility in ground subsidence regions consists of three tubes extruded simultaneously with the connecting webs and abutting at hexagonal segments form with two...
EP0238880B1 Mobile station and a mobile radio communication network in which electric power is saved without reduction of an activity ratio of radio communication channels  
Abstract not available for EP0238880
EP0098836B2 A METHOD AND AN EQUIPMENT FOR TRANSMISSION OF TELEPHONE CALLS TO A PORTABLE, WIRELESS TELEPHONE SET  
Abstract not available for EP0098836
5036891 Conduit bundle for in-ground cabling  
A conduit assembly for cabling has a multiplicity of plastic tubes with outer polygonal cross sections having more than three sides and is intended for direct insertion in the ground in a compact...
RE32789 Transmission trunk multichannel dispatch system with priority queuing  
A communication system of the type wherein a central station assigns a limited number of information channels to a requesting one of a plurality of remote stations is disclosed. The requesting...
EP0238880A2 Mobile station and a mobile radio communication network in which electric power is saved without reduction of an activity ratio of radio communication channels.  
Abstract not available for EP0238880
4672657 Multichannel telephone system  
A multi-channel RF telephone system that utilizes a dedicated channel status monitor to develop a list of available communications channels, and a common channel transceiver to transmit this list...
4486624 Microprocessor controlled radiotelephone transceiver  
An improved radiotelephone includes a unique microprocessor and peripheral devices for controlling the operation of portable or mobile radio transceivers in a cellular-type radiotelephone system....
4467141 Telecommunication system with radio line  
A mobile subscriber station served by a telephone network is coupled by a radio link with an individually associated stationary relay station directly connected to that network. The tow stations...
4463221 Automatic radio telephone encoder/decoder  
An automatic radio telephone encoder/decoder including a microcomputer programmed to decode incoming dial codes and generate outgoing radio telephone functions and dial codes in response to...
4434461 Microprocessor with duplicate registers for processing interrupts  
A unique microprocessor for controlling portable and mobile cellular radiotelephones is architectured to process high speed supervisory signalling, while also minimizing power drain. The...
4398265 Keyboard and display interface adapter architecture  
A unique interface adapter is coupled to a microprocessor by a three-wire self-clocking serial data bus for accommodating a twenty-key keyboard and an eight-digit display. The interface adapter...
4390963 Interface adapter architecture  
A unique interface adapter is described which includes circuitry for recovering a clock signal and a non-return-to-zero (NRZ) data signal from a data signal transmitted on two forward data signals....
4280020 Radio telephone system with direct digital carrier modulation for data transmission  
In a method of transmitting data and speech signals over a telephone system through which communication is effected via a radio link, the data and the speech signals are separated in the frequency...
4272650 Power supply system  
An electrical control system containing a power supply network including a primary high voltage power source and a secondary low voltage power source, the primary power source being held inactive...
EP0011063A1 Portable radiotelephone system.  
A portable telephone system which utilizes both a VOX and a duplexer network wherein the necessity for the transmission of a continuous signal and continuous receiver scanning is eliminated,...
4028500 Mobile unit supervisory control sequencer and method  
A mobile communication unit providing simplified calling procedures and thus an increase in the effective use of communication channels. An address signal representing a telephone system subscriber...
3936616 "Wild" mobile disable circuit  
A circuit for disabling, or shutting down, the transmitter of a mobile telephone unit when the unit is not connected to another party is disclosed. When such a "wild" mobile is sensed, a sequence...
Matches 1 - 28 out of 28