Matches 501 - 550 out of 678 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >
Match Document Document Title
5781854 Multiple wireless switching units embedded in a switching system  
Embedding one or a plurality of wireless switches into a switching system. The wireless switches are both physically and logically integrated into the switching system. The switching system...
5781540 Device and method for communicating in a mobile satellite system  
The present invention relates to a device and a method for communicating in a mobile communication system. The method provides a carrier signal having a plurality of frames. Each frame has a...
5771468 Multi-purpose base station  
The invention provides a modular base station for use in a plurality of telecommunications systems where the systems operate according to different standards. The base station comprises a chassis...
5765106 Authorized cellular telephone communication access and verification control system  
This invention relates to a cellular telecommunications systems that utilizes encryption and employs encrypted seed number signals to make it more difficult to make unauthorized cellular telephone...
5764730 Radiotelephone having a plurality of subscriber identities and method for operating the same  
A radiotelephone (303) comprises a plurality of subscriber identities (306-308) operative in a radiotelephone system (300) at the same time. The radiotelephone network (301) processes incoming and...
5758286 Method for accomplishing a mobile telecommunications connection using abbreviated dialing  
A method for placing a call from a first mobile station to a second mobile station using predetermined abbreviated dialing. An A-subscriber dials a short number at the first mobile station which is...
5758256 Method of transporting speech information in a wireless cellular system  
A method of transporting speech information over a wireless cellular communications system is provided. By determining the existence and compatibility of the destination port with the origination...
5752186 Access free wireless telephony fulfillment service system  
A information fulfillment system and method for providing information to a caller having a wireless communication device. Upon receipt of sensory prompting and manual or automatic input of access...
5749045 Method for handling alarm conditions in a paging system  
A method for handling alarm conditions from paging stations in a paging system is disclosed. The paging system includes a paging terminal, a plurality of paging stations, and a network manager....
5745492 Speech information freeze-out control method and equipment in mobile satellite communication system  
A speech freeze-out method in a communication system for transmitting speech information, which is sent from public telephone terminals (1) to a control center (5) through voice channels, from the...
5740531 Digital mobile telephone communication method, communication channel switching method, and mobile station and base station for implementing same methods  
Data signals such as a pseudo noise pattern and character data are transmitted along with voice signals over one voice signal channel, thereby allowing an accurate measurement of communication...
5740530 Rapid received signal strength indication  
There is provided a method of rapid Received Signal Strength Indication (RSSI) of a time-dispersed signal having echoes (where the time dispersal represents a significant fraction or more of the...
5737695 Method and apparatus for controlling the use of discontinuous transmission in a cellular telephone  
A method and apparatus for controlling the use of discontinuous transmission in a cellular telephone. The preferred embodiment of the present invention includes a voice activity detector for...
5734707 Telephone system  
A telephone system includes a plurality of telephones which do not require the use of a telephone company central switching station and which do not require the use of any other central control...
5734678 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels  
A terrestrial Rf telephone system provides a plurality of voice signal channels on a plurality of forward direction carrier frequencies, each carrier frequency having an associated predetermined...
5734639 Wireless direct sequence spread spectrum digital cellular telephone system  
An exceptionally efficient operation is achieved through the use of orthogonal code divisional multiple access radio communication between a base station and a plurality of user handsets. Each user...
5732356 Method and an arrangement for sound reconstruction during erasures  
Digital audio or sound information such a speech is typically transmitted in bursts or packets containing a plurality of digitized sound samples. For the reconstruction of such a digital data...
5722066 PSTN transaction processing network employing wireless transceivers  
A business transaction network including a wireless communication link for coupling a card transaction terminal to a host computer through the public switched telephone network (PSTN). The wireless...
5719936 Communication device for mobile operation having a telephone and notebook with display  
A communication device for mobile operation is equipped with a telephone as well as with a notebook with a display. Prior art devices have a housing in "pocket format" and a practically...
5717737 Apparatus and method for transparent wireless communication between a remote device and a host system  
An apparatus and method is provided for transparent communication between a wireless remote or mobile device and a fixed wired communication host network. The apparatus and method may include a...
5715311 Communication terminal apparatus  
A communication terminal apparatus having a speech input module arranged movable from a position adjacent to a main shell to a position distanced from the main shell for calling. The communication...
5715296 Concurrent wireless/landline interface apparatus  
An apparatus for interfacing at least one land-line telephone service, at least one wireless cellular-type telephone service, at least one cellular-type wireless telephone and at least one standard...
5694454 Apparatus for message re-transmission on demand  
A communication system (100) providing analog message re-transmission on demand comprises a base station (114) and at least one portable communication transceiver (118). The base station (114)...
5687194 Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels  
A system for the wireless transmission of multiple information signals utilizing digital time division circuits between a base station and a plurality of subscriber stations. The subscriber...
5682600 Method for starting a short message transmission  
A method for starting a short message transmission in a cellular radio network, a corresponding cellular radio network, and a subscriber register for a cellular radio network. The subscriber...
5666398 Switching equipment and method for radiotelephone system of the local or private branch exchange type  
A radio telephone system is disclosed to satisfy in the short term basic telecommunication needs of areas which are insufficiently or not yet covered. The system has a number of duplex radio...
5642400 Communication apparatus used for communicating in accordance with a multi-channel access method  
A communication apparatus to which communication units for communicating in accordance with a multichannel access method are connected comprises a receiver to receive ID information of a...
5608725 Method and apparatus of a communications system having a DMT infrastructure  
A communication system (100) includes a primary site (102) coupled to a plurality of secondary sites (104-108) using DMT technology. The primary site (102) includes a controller, a data...
5553126 Secure anti-jamming wireless party line  
A secure wireless party line system that can be used by a group of mobile users to communicate with each other like a wired party line but without the cumbersome inconvenience of long wired tether....
5539529 Facsimile communication with selective call receivers  
A selective call receiver (40) includes a receiver (66) for receiving information represented as a bitmap image. The selective call receiver 40 further includes a segmenter (206), coupled to the...
5528665 Telephone exchange apparatus for both mobile and stationary stations, in which all communication channel pairs are assignable for all stations  
A telephone exchange apparatus for both mobile and stationary subscribers in which the stationary subscribers are not assigned permanent channel pairs but rather are treated as the mobile...
5528593 Method and apparatus for controlling power in a variable rate communication system  
A method and apparatus for controlling transmission power in a variable rate communication system is disclosed. The method disclosed provides for a closed loop power control method. A first remote...
5528585 Modularly clustered radiotelephone system  
A power-conserving time division multiple access (TDMA) radio telephone system is disclosed in which a cluster of subscriber stations, remote from a base station, employs a common pool of...
5517492 Increased speech interleave with reduced delay  
In a TDM readiotelephone network, there is provided a mechanism for introducing link asymmetry between an uplink and a downlink, paired frame alternation on the uplink and downlink and bandwidth...
5515397 PCM subcode communications technique between a regional radio transmitter/receiver and a regional switching center  
In a radiotelephone network, processing steps previously applied to digital voice transmissions received by a regional radio transmitter/receiver but not applied to analog voice transmissions...
5513247 Method and apparatus for facilitating the making of wireless telephone calls  
The lack of uniformity for accessing wireless carriers to reach roaming wireless telephones prevents nationwide wireless telephone service from being provided in a seamless manner by an automated...
5513242 Method and apparatus for facilitating the ultimate making of wireless data transfers  
Unnecessary expenses associated with exchanging data with wireless data stations that have become unavailable are avoided, in accordance with the principles of the invention, by a) transmitting the...
5497424 Spread spectrum wireless telephone system  
A system for accessing a telephone system, in which a set of user stations are matched with a set of base stations for connection to a telephone network. Each base station may be coupled directly...
5493693 Mobile radio communication system utilizing mode designation  
A mobile radio communication system is provided with a base station apparatus connected to a wire circuit, a mobile radio station apparatus which is connected to the base station apparatus by means...
5479400 Transceiver sharing between access and backhaul in a wireless digital communication system  
A microcellular digital packet communication system is provided for digital communication having a plurality of repeating packet-mode fixed-site transceivers each being at a plurality of different...
5475869 Radio base station capable of distinguishing between interference due to collisions of outgoing call signals and an external interference noise  
In a mobile communication system having a radio base station (14A), a plurality of mobile stations connected to the radio base station via at least one control channel, and a radio exchange station...
5475735 Method of providing wireless local loop operation with local mobility for a subscribed unit  
Mobility is provided for wireless local loop radiotelephone systems by providing the home access network of a subscriber unit with a home access number. Upon registration of the subscriber unit...
5444763 Translation and connection device for radio frequency point of sale transaction systems  
A device is provided that interfaces with existing point of sale credit card reading devices, and furnishes the option of transmitting data over either the existing modem installation or a radio...
5442683 Directory structure for large scale telecommunications network allowing location of roaming mobile subscribers  
A mobile telecommunications system for a large area telecommunications system, including a plurality of different networks, has a directory/network structure for minimizing data storage and...
5400020 Advance notification system and method  
An advance notification system (10) and method for notifying school children of the impending arrival of their school bus (19). The system includes an on-board vehicle control unit (12) for each...
5396541 Call handoff in a wireless telephone system  
Signaling a mobile unit to transmit a synchronization pattern with voice information upon detecting from the signal strength of the wireless mobile unit by a base station that the mobile unit is...
5377255 RF repeaters for time division duplex cordless telephone systems  
An RF repeater for interfacing with a base station for exchanging transmit and receive signals in a time division duplex cordless telephone system comprises a multicarrier amplifier having an input...
5375122 Telephony device for a telephony communications network with fixed stations and independent stations  
A fixed station (BFR1) is able to interact with a plurality of independent stations (SA1, . . . , SA4) and is linked to an external management unit (UGRB1) only by the intermediary of a single pair...
5363376 Method and apparatus for synchronizing timing among radio ports in wireless communications systems  
In a TDM/TDMA digital radio communications system, time synchronization between fixed ports is achieved by adjusting the timing of a first port in response to the average timing difference between...
5363375 Method and apparatus for synchronizing timing among radio ports in wireless communications systems using hierarchical scheme  
In a TDM/TDMA digital radio communications system a few selected ports are connected to a fixed common timing reference and designated as master ports. Each master port is assigned a hierarchical...
Matches 501 - 550 out of 678 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 >