Pacific Communication Sciences, Inc.
50Patents
0Active
50Granted
39Portfolio score
Filing activity: May 26, 1988 → Sep 30, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5797098A | User interface for cellular telephone | Electricity | 189 | Expired |
| US5544222A | Cellular digtial packet data mobile data base station | Electricity | 184 | Expired |
| US5533029A | Cellular digital packet data mobile data base station | Electricity | 180 | Expired |
| US6032053A | Signaling the type of incoming telephone calls | Electricity | 102 | Expired |
| US6058289A | Method and apparatus for low power mobile unit for cellular communications system | Emerging Cross-Sectional Technologies | 101 | Expired |
| US5376894A | Phase estimation and synchronization using a PSK demodulator | Electricity | 101 | Expired |
| US5406613A | Method and apparatus for reducing power consumption in cellular telephone by adaptively determining the reliability of the reception of a received message block | Emerging Cross-Sectional Technologies | 90 | Expired |
| US5444696A | Frame structure using consecutive slot assignments for mobile communications | Emerging Cross-Sectional Technologies | 88 | Expired |
| US5594943A | Method and apparatus for efficient handoffs by mobile communication entities | Emerging Cross-Sectional Technologies | 84 | Expired |
| US5819184A | Portable communications and data terminal operating to optimize receipt of both incoming CDPD and AMPS messages | Electricity | 61 | Expired |
| US5625652A | Timing recovery controller and method for adjusting the timing of synchronizing windows in a PSK demodulator | Electricity | 51 | Expired |
| US5722040A | Method and apparatus of frequency generation for use with digital cordless telephones | Electricity | 50 | Expired |
| US4964166A | Adaptive transform coder having minimal bit allocation processing | Physics | 49 | Expired |
| US5012517A | Adaptive transform coder having long term predictor | Physics | 47 | Expired |
| US5819182A | Method and apparatus for improving receiver performance in a land mobile communications system | Electricity | 45 | Expired |
| US6826400B1 | Method and apparatus for concurrent monitoring of divergent wireless telecommunication systems | Electricity | 42 | Expired |
| US6434395B1 | Portable communications and data terminal having multiple modes of operation | Emerging Cross-Sectional Technologies | 41 | Expired |
| US5481571A | Method and apparatus for switching between radio frequency circuits | Electricity | 35 | Expired |
| US5717824A | Adaptive speech coder having code excited linear predictor with multiple codebook searches | Physics | 33 | Expired |
| US5042069A | Methods and apparatus for reconstructing non-quantized adaptively transformed voice signals | Physics | 33 | Expired |
| US5862326A | Efficient request-reply protocol for a client-server model | Electricity | 30 | Expired |
| US5457783A | Adaptive speech coder having code excited linear prediction | Physics | 27 | Expired |
| US5491700A | Method and apparatus for code error correction using an ordered syndrome and error correction lookup table | Electricity | 27 | Expired |
| US4991213A | Speech specific adaptive transform coder | Physics | 27 | Expired |
| US5574750A | Methods and apparatus for detecting a cellular digital packet data (CDPD) carrier | Electricity | 25 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.