27738
Spread spectrum modem
Patent #: 3934203
Issued on: 01/20/1976
Inventor: Schiff
Surface acoustic wave device and method of making same
Patent #: 3978436
Issued on: 08/31/1976
Inventor: Alig , et al.
Method of adjusting the frequency of vibration of piezoelectric resonators
Patent #: 4021898
Issued on: 05/10/1977
Inventor: Willis , et al.
Surface acoustic wave transmission device and method of manufacturing same
Patent #: 4051448
Issued on: 09/27/1977
Inventor: Coussot
Discrete chirp frequency synthesizer
Patent #: 4100498
Issued on: 07/11/1978
Inventor: Alsup , et al.
Frequency adjusting a piezoelectric device by lasering
Patent #: 4131484
Issued on: 12/26/1978
Inventor: Caruso , et al.
Compensation circuit for an electrical signal mixer
Patent #: 4163944
Issued on: 08/07/1979
Inventor: Chambers , et al.
Surface wave phase correlator and monopulse radar system employing the same
Patent #: 4217563
Issued on: 08/12/1980
Inventor: Vale
Spread spectrum apparatus for cellular mobile communication systems
Patent #: 4222115
Issued on: 09/09/1980
Inventor: Cooper , et al.
More ...
Jam resistant communication system
Patent #: 4247942
Issued on: 01/27/1981
Inventor: Hauer
Method of manufacturing acoustic surface wave device
Patent #: 4314393
Issued on: 02/09/1982
Inventor: Wakatsuki , et al.
Technique for efficient spectrum utilization in mobile radio systems using space diversity
Patent #: 4355411
Issued on: 10/19/1982
Inventor: Reudink , et al.
Matched filter spread spectrum code recovery apparatus
Patent #: 4418393
Issued on: 11/29/1983
Inventor: Zscheile, Jr.
Encryption using destination addresses in a TDMA satellite communications network
Patent #: 4418425
Issued on: 11/29/1983
Inventor: Fennel, Jr. , et al.
Digital loop transceiver for interfacing a digital PABX to a digital subscriber set via a subscriber line
Patent #: 4432089
Issued on: 02/14/1984
Inventor: Wurzburg , et al.
Method of manufacturing piezoelectric resonator components
Patent #: 4445256
Issued on: 05/01/1984
Inventor: Huguenin , et al.
Satellite communications system and apparatus
Patent #: 4455651
Issued on: 06/19/1984
Inventor: Baran
Cordless telephone system
Patent #: 4456793
Issued on: 06/26/1984
Inventor: Baker , et al.
Digital loop transceiver having a power up/down circuit
Patent #: 4484028
Issued on: 11/20/1984
Inventor: Kelley , et al.
Communication over noisy lines
Patent #: 4517679
Issued on: 05/14/1985
Inventor: Clark , et al.
Duplex radio system utilizing time compression expansion
Patent #: 4525835
Issued on: 06/25/1985
Inventor: Vance , et al.
Spread spectrum adaptive code tracker
Patent #: 4550414
Issued on: 10/29/1985
Inventor: Guinon , et al.
Correlation detectors for use in direct sequence spread spectrum signal receiver
Patent #: 4561089
Issued on: 12/24/1985
Inventor: Rouse , et al.
Method for adjusting the frequency of a piezoelectric crystal resonator
Patent #: 4562370
Issued on: 12/31/1985
Inventor: Von Dach
Address coded communication system
Patent #: 4563774
Issued on: 01/07/1986
Inventor: Gloge
Synchronization system for use in direct sequence spread spectrum signal receiver
Patent #: 4567588
Issued on: 01/28/1986
Inventor: Jerrim
Interface circuit for interfacing between asynchronous data in start/stop format and synchronous data
Patent #: 4569062
Issued on: 02/04/1986
Inventor: Dellande , et al.
Code division multiplexer using direct sequence spread spectrum signal processing
Patent #: 4601047
Issued on: 07/15/1986
Inventor: Horwitz , et al.
Spread spectrum coding method and apparatus
Patent #: 4606039
Issued on: 08/12/1986
Inventor: Nicolas , et al.
Multiple-access communications system
Patent #: 4612637
Issued on: 09/16/1986
Inventor: Davis , et al.
Synchronization preamble correlation detector and frequency estimator
Patent #: 4621365
Issued on: 11/04/1986
Inventor: Chiu
Rounded wall surface acoustic wave sensors
Patent #: 4622854
Issued on: 11/18/1986
Inventor: Locke , et al.
Spread spectrum radio transmission system
Patent #: 4641317
Issued on: 02/03/1987
Inventor: Fullerton
Laser trimming monolithic crystal filters to frequency
Patent #: 4642505
Issued on: 02/10/1987
Inventor: Arvanitis
Saw transition detector for PSK signals
Patent #: 4647863
Issued on: 03/03/1987
Inventor: Skudera, Jr. , et al.
Apparatus for synchronizing linear PN sequences
Patent #: 4649549
Issued on: 03/10/1987
Inventor: Halpern , et al.
Spread spectrum correlation receiver
Patent #: 4653069
Issued on: 03/24/1987
Inventor: Roeder
Multiplexed digital correlator
Patent #: 4660164
Issued on: 04/21/1987
Inventor: Leibowitz
Surface acoustic wave devices and method of manufacture thereof
Patent #: 4672254
Issued on: 06/09/1987
Inventor: Dolat , et al.
Spread spectrum wireless PBX
Patent #: 4672658
Issued on: 06/09/1987
Inventor: Kavehrad , et al.
Personal-signaling communication system
Patent #: 4680785
Issued on: 07/14/1987
Inventor: Akiyama , et al.
Spread-spectrum communication system
Patent #: 4691326
Issued on: 09/01/1987
Inventor: Tsuchiya
Optical local area network employing microwave modulation techniques
Patent #: 4701904
Issued on: 10/20/1987
Inventor: Darcie
Spread spectrum code-division-multiple-access (SS-CDMA) lightwave communication system
Patent #: 4703474
Issued on: 10/27/1987
Inventor: Foschini , et al.
Spread spectrum correlator for recovering CCSK data from a PN spread MSK waveform
Patent #: 4707839
Issued on: 11/17/1987
Inventor: Andren , et al.
Microprocessor controlled interface for cellular system
Patent #: 4718080
Issued on: 01/05/1988
Inventor: Serrano , et al.
Bi-directional data telemetry system
Patent #: 4724435
Issued on: 02/09/1988
Inventor: Moses , et al.
Satellite communications system with random multiple access and time slot reservation
Patent #: 4736371
Issued on: 04/05/1988
Inventor: Tejima , et al.
Multipoint communication system having polling and reservation schemes
Patent #: 4742512
Issued on: 05/03/1988
Inventor: Akashi , et al.
Surface acoustic wave device
Patent #: 4745378
Issued on: 05/17/1988
Inventor: Niitsuma , et al.
Digital radio transmission system with a connection-accompanying organization channel in the time-division multiplex frame
Patent #: 4754453
Issued on: 06/28/1988
Inventor: Eizenhofer
Remote telephonic data transcribing system
Patent #: 4754473
Issued on: 06/28/1988
Inventor: Edwards
Multi-step spread spectrum communication apparatus
Patent #: 4759034
Issued on: 07/19/1988
Inventor: Nagazumi
Coordinated local oscillator receiving system
Patent #: 4759078
Issued on: 07/19/1988
Inventor: Schiller
Time division switching system having a priority selector responsive to proceed-to-send requests
Patent #: 4769812
Issued on: 09/06/1988
Inventor: Shimizu
Combinatorial coded telemetry
Patent #: 4787093
Issued on: 11/22/1988
Inventor: Rorden
Blood constituent monitoring apparatus and methods with frequency division multiplexing
Patent #: 4800885
Issued on: 01/31/1989
Inventor: Johnson
Distribution energy management system
Patent #: 4804938
Issued on: 02/14/1989
Inventor: Rouse , et al.
Modem compression system for telephone network
Patent #: 4805208
Issued on: 02/14/1989
Inventor: Schwartz
Cordless accessed high-speed high-capacity local area networks
Patent #: 4807222
Issued on: 02/21/1989
Inventor: Amitay
Time domain radio transmission system
Patent #: 4813057
Issued on: 03/14/1989
Inventor: Fullerton
Power line communication apparatus
Patent #: 4815106
Issued on: 03/21/1989
Inventor: Propp , et al.
Telephone registration and cancellation control in a wide area cordless telephone system
Patent #: 4833702
Issued on: 05/23/1989
Inventor: Shitara , et al.
Technique for mitigating rain fading in a satellite communications system using quadrature phase shift keying
Patent #: 4837786
Issued on: 06/06/1989
Inventor: Gurantz , et al.
Radio communication method and system
Patent #: 4837802
Issued on: 06/06/1989
Inventor: Higashiyama , et al.
Synchronization pulse generator in spread spectrum communication system
Patent #: 4860307
Issued on: 08/22/1989
Inventor: Nakayama
Wireless telephone system
Patent #: 4866732
Issued on: 09/12/1989
Inventor: Carey , et al.
Cordless telephone network
Patent #: 4878238
Issued on: 10/31/1989
Inventor: Rash, et al.
Colocated cellular radiotelephone systems
Patent #: 4893327
Issued on: 01/09/1990
Inventor: Stern, et al.
Precorrelation digital spread spectrum receiver
Patent #: 4894842
Issued on: 01/16/1990
Inventor: Broekhoven, et al.
Spread spectrum multiple access communication system using satellite or terrestrial repeaters
Patent #: 4901307
Issued on: 02/13/1990
Inventor: Gilhousen, et al.
Earth station capable of effectively using a frequency band of a satellite
Patent #: 4905221
Issued on: 02/27/1990
Inventor: Ichiyoshi
Asynchronous communication system
Patent #: 4918689
Issued on: 04/17/1990
Inventor: Hui
Network and intelligent cell for providing sensing, bidirectional communications and control
Patent #: 4918690
Issued on: 04/17/1990
Inventor: Markkula, Jr., et al.
Spread-spectrum identification signal for communications system
Patent #: 4943973
Issued on: 07/24/1990
Inventor: Werner
Spread-spectrum receiver
Patent #: 4965759
Issued on: 10/23/1990
Inventor: Uchida, et al.
Time domain radio transmission system
Patent #: 4979186
Issued on: 12/18/1990
Inventor: Fullerton
Method of establishing a radio link in one of a plurality of channels between two radio units
Patent #: 4995083
Issued on: 02/19/1991
Inventor: Baker, et al.
Wireless telephone system
Patent #: 5005183
Issued on: 04/02/1991
Inventor: Carey, et al.
Asymmetric spread spectrum correlator
Patent #: 5016255
Issued on: 05/14/1991
Inventor: Dixon, et al.
Communication system using spread spectrum and leaky transmission line
Patent #: 5018165
Issued on: 05/21/1991
Inventor: Sohner, et al.
Spread spectrum correlator
Patent #: 5022047
Issued on: 06/04/1991
Inventor: Dixon, et al.
Data transmission system using spread spectrum communication
Patent #: 5023887
Issued on: 06/11/1991
Inventor: Takeuchi, et al.
Full-duplex, sub-band spread spectrum communications system
Patent #: 5025452
Issued on: 06/18/1991
Inventor: Sohner, et al.
Digital cordless telephone systems
Patent #: 5042050
Issued on: 08/20/1991
Inventor: Owen
Method and apparatus for controlling transmission power in a CDMA cellular mobile telephone system
Patent #: 5056109
Issued on: 10/08/1991
Inventor: Gilhousen, et al.
Integrated cellular communications system
Patent #: 5073900
Issued on: 12/17/1991
Inventor: Mallinckrodt
Method and system for providing a soft handoff in communications in a CDMA cellular telephone system
Patent #: 5101501
Issued on: 03/31/1992
Inventor: Gilhousen, et al.
Diversity receiver in a CDMA cellular telephone system
Patent #: 5109390
Issued on: 04/28/1992
Inventor: Gilhousen, et al.
Multiple access protocol Patent #: 5166929
Issued on: 11/24/1992
Inventor: Lo
December 3, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
