Did You Know...
...that Robert Adler has the dubious distinction of being the Father of the Couch Potato? Back in 1955 Adler was employed by what was then Zenith Radio Corp., where he was charged to invent something that would allow viewers to turn down the TV volume without leaving their chairs. After a series of flops (such as a wired contraption that people tripped over), Adler hit on the idea of using sound waves. Thus the Remote Control was born...
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| Number | Title | Issue Date |
| 5481561 | Fully meshed CDMA network for personal communications terminals A network of personal communications terminals communicating in a CDMA mode includes a reference station for transmitting a pilot tone that is pre-corrected at the reference station and is used at the remaining stations for frequency control, transmit pow... | 01/02/1996 |
| 5473601 | Frequency reuse technique for a high data rate satellite communication system Frequency reuse and data coding methods for use in a high data rate satellite communication system. The frequency reuse method provides for dual polarization and spatial reuse of transmit and receive beams to provide for a twelve-fold increase in the effe... | 12/05/1995 |
| 5469468 | Overlaying spread-spectrum satellite system and method A spread-spectrum satellite system for communicating data and paging messages to a plurality of remote units. The spread-spectrum communications system has a satellite with an antenna beamwidth located within a same geographical region as covered by an ex... | 11/21/1995 |
| 5463656 | System for conducting video communications over satellite communication link with aircraft having physically compact, effectively conformal, phased array antenna A system architecture and communication methodology for significantly reducing the size of an aircraft antenna required to provide full broadcast quality video communications with an aircraft via a satellite communications link includes a combination of v... | 10/31/1995 |
| 5450395 | Code position modulation system and method for multiple user satellite communications An embodiment of the present invention is a communications system for multiple users sharing the same maximal length code (MLC) in a code position modulation multiple access environment. A 1023 chip length code is transmitted with reference to an independ... | 09/12/1995 |
| 5345439 | Multi purpose digital signal regenerative processing apparatus A multi purpose digital signal regenerative processing apparatus (1) has three modulation sub-systems (2, 3 and 4) in parallel. Each sub-system is selectively selectable to enable a plurality of users to access, independently of one another, a sub-band of... | 09/06/1994 |
| 5339330 | Integrated cellular communications system A cellular communications system is provided having both surface and satellite nodes which are fully integrated for providing service over large areas. A spread spectrum system is used with code division multiple access (CDMA) employing forward error corr... | 08/16/1994 |
| 5327455 | Method and device for multiplexing data signals Before modulating the transmission carrier, each binary data signal is individually coded as a discrete symbol belonging to a PSK constellation of N symbols which are combined with N discrete points to produce two binary signal streams of which the first ... | 07/05/1994 |
| 5313457 | Code position modulation system and method for multiple user satellite communications An embodiment of the present invention is a communications system for multiple users sharing the same maximal length code (MLC) in a code position modulation multiple access environment. A 1023 chip length code is transmitted with reference to an independ... | 05/17/1994 |
| 5307341 | Random access multiple user communication system A frequency comb multiple access (FCMA) communications system in which address and message data are transmitted on a common channel to different users. The data transmitted are in the form of signatures, each of which consists of combined specific frequen... | 04/26/1994 |
| 5303286 | Wireless telephone/satellite roaming system A wireless telephone system capable of servicing a roaming wireless telephone user includes a satellite communications system consisting of one or more orbiting satellites, each carrying a database of users, destination codes and call codes, within a sate... | 04/12/1994 |
| 5175557 | Two channel global positioning system receiver A method and apparatus for operating a two channel digital global positioning system receiver for receiving coded satellite signals from each of a plurality of satellites, where the signals exhibit Doppler shifts. The method comprises the steps of continu... | 12/29/1992 |
| 5138631 | Satellite communication network A satellite communication system has a hub earth station and a plurality of terminal earth stations. Each inbound satellite communication link from a terminal earth station to the hub earth station carries digital data packets encoded in CDMA code for cod... | 08/11/1992 |
| 5084900 | Spread spectrum system with random code retransmission A communication system includes a hub station and a plurality of terminal stations. An inbound satellite communication link from each of the terminal stations to the hub station sends digital data packets encoded with a CDMA code for code division multipl... | 01/28/1992 |
| 5073900 | Integrated cellular communications system A cellular communications system is provided having both surface and satellite nodes which are fully integrated for providing service over large areas. A spread spectrum system is used with code division multiple access (CDMA) employing forward error corr... | 12/17/1991 |
| 5048015 | Interference source identification A method and apparatus for immediately identifying the presence and the source of interference in a communications system. A separate identification code is superimposed on each signal transmitted from a separate transmitter. At any receiver, if an undesi... | 09/10/1991 |
| 5038341 | Relay communication system The invention is a relay communications system which uses a single reference frequency signal generator to produce a plurality of precisely frequency synchronized code division multiple access radio frequency signals. A transmitter transmits the synchroni... | 08/06/1991 |
| 4905221 | Earth station capable of effectively using a frequency band of a satellite For use in a satellite communication system which carries out communication through a satellite by the use of an up-link frequency band and a down-link frequency band, each of the up-link and the down-link frequency bands has a plurality of frequency subb... | 02/27/1990 |
| 4901307 | Spread spectrum multiple access communication system using satellite or terrestrial repeaters A multiple access, spread spectrum communication system and method for providing high capacity communications to, from, or between a plurality of system users, using code-division-spread-spectrum communication signals. The communication system uses means ... | 02/13/1990 |
| 4849961 | Fast sequencing demodulation method and apparatus A fast sequencing method and apparatus for use in a radio navigation system of the GPS type. Satellite-coded signals are simultaneously received from a plurality of sources. The signals are decoded in a single channel by multiple samplings of each signal ... | 07/18/1989 |
| 4646324 | Digital information transfer system (DITS) transmitter A digital transmitter (13) for transmitting serial words of predetermined length at selected speeds for output at a plurality of parallel channels (120, 120'). The words selected for series transmission at said parallel output channels (120, 120') are seq... | 02/24/1987 |
| 4630283 | Fast acquisition burst mode spread spectrum communications system with pilot carrier A high frequency code division multiple access spread spectrum (CDMA SS) communications system includes multiple transmitters and their associated receivers, and a pilot carrier source. In order to reduce errors in the receiver IF frequency due to unavoid... | 12/16/1986 |
| 4455651 | Satellite communications system and apparatus A satellite communications system, which is inherently power limited, employing spread spectrum techniques in order to trade-off bandwidth for small ground station antennas. In a one-way system embodiment a central station transmits data to a satellite fo... | 06/19/1984 |
