Matches 1 - 37 out of 37
Match Document Document Title
7421342 Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates  
A mobile terminal is configured to receive wireless communications including GPS data from a terrestrial and/or satellite wireless network, and to perform pseudo-range measurements using the GPS...
7295807 Methods and systems for configuring satellite antenna cell patterns in response to terrestrial use of satellite frequencies  
Space-based wireless radiotelephone communications are provided in a satellite footprint over a satellite radiotelephone frequency band. The satellite footprint is divided into satellite cells in...
7280593 Method and system for sample and reconstruction synchronization for digital transmission of analog modem signal  
A method and system for the synchronization of the transmission of digitally converted analog modem signals between two or more modems using either RF over-the-air or A/C power line communication...
7177593 Estimating communication quality  
A method for estimating quality of communications between a transmitter and a receiver over a communications link operable to carry data in at least one of a plurality of different compressed...
7155340 Network-assisted global positioning systems, methods and terminals including doppler shift and code phase estimates  
A mobile terminal is configured to receive wireless communications including GPS data from a terrestrial and/or satellite wireless network, and to perform pseudo-range measurements using the GPS...
7130337 Method and system for sample and recreation synchronization for digital transmission of analog modem signal  
A method and system for the synchronization of the transmission of digitally converted analog modem signals between two or more modems using either RF over-the-air or A/C power line communication...
7126934 Method for base station compressing and transmitting high speed data  
Two related voiceband compression techniques are employed in order to enable an RF telecommunications base station to accommodate data signals of high speed voiceband modems and FAX machines. A...
7062267 Methods and systems for modifying satellite antenna cell patterns in response to terrestrial reuse of satellite frequencies  
Space-based wireless radiotelephone communications are provided in a satellite footprint over a satellite radiotelephone frequency band. The satellite footprint is divided into satellite cells in...
7061885 Base station for compressing and transmitting high speed data  
Two related voiceband compression techniques are employed in order to enable an RF telecommunications base station to accommodate data signals of high speed voiceband modems and FAX machines. A...
7039400 Systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference  
Radiation by an ancillary terrestrial network, and/or satellite radiotelephones that communicate therewith are monitored and controlled, to reduce and preferably prevent intra-system interference...
7031702 Additional systems and methods for monitoring terrestrially reused satellite frequencies to reduce potential interference  
A satellite radiotelephone system includes a space-based component, an ancillary terrestrial network, a monitor and a controller. The space-based component is configured to wirelessly communicate...
7016646 Communication system employing reuse of satellite spectrum for terrestrial communication  
A terrestrial communication system using satellite uplink and downlink frequencies is disclosed. A terrestrial cell site produces a signal at a satellite uplink frequency that is transmitted to a...
6931370 System and method for providing interactive audio in a multi-channel audio environment  
DTS Interactive provides low cost fully interactive immersive digital surround sound environment suitable for 3D gaming and other high fidelity audio applications, which can be configured to...
6888815 Subscriber unit for compressing and transmitting high speed data  
Two related voiceband compression techniques are employed in order to enable an RF subscriber unit to accommodate data signals of high speed voiceband modems and FAX machines. A High Speed Codec...
6836515 Multi-modulation radio communications  
A radio, and related methods of radio communication, consisting of a multi-modulation modem, wherein the multi-modulation modem that modulates and demodulates signals using a plurality of...
6792403 Method and apparatus for compressing and transmitting ultra high speed data  
Voiceband compression techniques are employed in order to enable an RF telecommunications base station to accommodate data signals of high speed voiceband modems and FAX machines. An Ultra-High...
6735437 Communication system employing reuse of satellite spectrum for terrestrial communication  
A terrestrial communication system using satellite uplink and downlink frequencies is disclosed. A terrestrial cell site produces a signal at a satellite uplink frequency that is transmitted to a...
6704346 Method and apparatus to provide improved microwave interference robustness in RF communications devices  
A RF communications system and method having improved RF interference characteristics for use with at least a pair of RF transceivers which communicate using a packet transfer protocol, in a...
6684057 Systems and methods for terrestrial reuse of cellular satellite frequency spectrum  
A satellite radiotelephone frequency can be reused terrestrially by an ancillary terrestrial network even within the same satellite cell, using interference cancellation techniques. Moreover, the...
6658255 Enhanced wireless radio channel utilization  
Apparatus and a method for establishing a cellular mobile call. If no radio traffic (voice or data) channels are available for a calling or called mobile station (MS), then a test is made to...
6597668 System and method for maximizing efficiency in a time division duplex system employing dynamic asymmetry  
Systems and methods for efficiently utilizing spectrum in a time division duplex system are shown. In the preferred embodiment fractions of a time division duplex frame are asymmetrically adjusted...
6584595 Technique for correcting single-bit errors in caches with sub-block parity bits  
A data block includes a plurality of sub-blocks. Each sub-block includes a sub-block check bit that may be used to detect the presence of a bit error within the sub-block. A composite sub-block is...
6574207 Method for subscriber unit compressing and transmitting high speed data  
Two related voiceband compression techniques are employed in order to enable an RF telecommunications subscriber unit to accommodate data signals of high speed voiceband modems and FAX machines. A...
6526383 Method and apparatus for compressing and transmitting high speed data  
Two related voiceband compression techniques are employed in order to enable an RF telecommunications system to accommodate data signals of high speed voiceband modems and FAX machines. A High...
6487179 Methods for preventing and detecting message collisions in a half-duplex communication system  
In a half-duplex communication system in which additional delays in the communication channel may cause a message collision between a message and a response, a collision detector is utilized to...
6389057 Access technique of channel hopping communications system  
Establishing a connection between a paging unit and a standby unit in a channel hopping communications system includes activating the standby unit for an activation time period out of every standby...
6385189 Method and apparatus for compressing and transmitting high speed data  
Two related voiceband compression techniques are employed in order to enable an RF telecommunications system to accommodate data signals of high speed voiceband modems and FAX machines. A High...
6345251 Low-rate speech coder for non-speech data transmission  
Low rate data signals, such as standard TTY signals and standard DTMF signals, can be effectively analyzed and encoded by speech encoders employed in conventional digital cellular system. This is...
6304992 Technique for correcting single-bit errors in caches with sub-block parity bits  
A data block includes a plurality of sub-blocks. Each sub-block includes a sub-block check bit that may be used to detect the presence of a bit error within the sub-block. A composite sub-block is...
6111870 Method and apparatus for compressing and transmitting high speed data  
Two related voiceband compression techniques are employed in order to enable an RF telecommunications system to accommodate data signals of high speed voiceband modems and FAX machines. A High...
6108560 Wireless communications system  
The present invention relates to wireless communication systems and in particular to wireless communication systems which employ coder-decoder means in the transmission of information between two...
6101174 Low power, short range point-to-multipoint communications systems  
A point-to-multipoint or two-way communications system is provided by a nodal transmitter located in a node with a plurality of nodal antennas radiating different polarization signals about the...
6023460 Wireless communications system and method using a reusable control channel  
In a wireless communication system in which a base station communicates with plural mobile stations using a control channel and plural voice (or data) channels, the present invention uses the...
EP0975196A2 Multi-modulation radio communications  
A radio (1400), and related methods of radio communication, consisting of a multi-modulation modem (1100), wherein the multi-modulation modem that modulates and demodulates signals using a...
5950136 System and method for routing data calls in a cellular network  
A channel routing manager that is employed by a mobile telecommunications switching office routes voice and data calls over a carrier facility interconnecting a cell site transceiver to the mobile...
5909432 Digital cordless telephony system, a radio base station, and a combination of a radio base station and a cordless handset  
A digital cordless telephony system comprises a radio base station and a plurality of portable radio stations. The radio base station comprises a single digital signal processor for performing...
5901160 Decoder with an error control adaptively applied on the basis of the estimated position of a slot in a frame  
A decoder which is adapted to receive a frame of coded data consisting of multiple slots including intra-frame position information indicating positions of the slots in the frame to decode the...
Matches 1 - 37 out of 37