in which the phase changes in a piecewise linear manner within each symbol period

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CPC
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HELECTRICITY H04Electric communication H04LTRANSMISSION OF DIGITAL INFORMATION H04L27/00Modulated-carrier systems

Current Industry

H04L27/2025in which the phase changes in a piecewise linear manner within each symbol period

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Patents Grantslast 30 patents

Information Patent Grant
QM-CPM modems with higher order signaling
- Patent number 7,769,096
- Issue date Aug 3, 2010
- Trellis Phase Communications, LP
- John P. Fonseka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio-frequency signal generator
- Patent number 6,046,643
- Issue date Apr 4, 2000
- Siemens Aktiengesellschaft
- Christian Kranz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital modulation employing single sideband with suppressed carrier
- Patent number 5,930,303
- Issue date Jul 27, 1999
- Harold Walker
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
FSK communication device for digital information
- Patent number 5,883,922
- Issue date Mar 16, 1999
- Olivetti Telemedia S.p.A.
- Andrew Bud
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Modulation of transmission data signal in sychronous with transmiss...
- Patent number 5,838,208
- Issue date Nov 17, 1998
- NEC Corporation
- Mikio Fukushi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Direct 2nd derivative synthesis method for controlling sidelobe ene...
- Patent number 5,834,986
- Issue date Nov 10, 1998
- TRW Inc.
- Michael H. Myers
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital continuous phase modulation for a DDS-driven phase locked loop
- Patent number 5,834,985
- Issue date Nov 10, 1998
- Telefonaktiebolaget L M Ericsson (publ)
- Bo Sundeg.ang.rd
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Numerically controlled phase lock loop synthesizer/modulator and me...
- Patent number 5,444,420
- Issue date Aug 22, 1995
- Harris Corporation
- James V. Wernlund
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transmitting apparatus and receiving apparatus based on phase modul...
- Patent number 5,418,819
- Issue date May 23, 1995
- Nippon Hoso Kyokai
- Masatoshi Hamada
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Time shift keying digital communications system
- Patent number 5,406,584
- Issue date Apr 11, 1995
- X-Com, Inc.
- David E. Erisman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital frequency generation device
- Patent number 5,399,984
- Issue date Mar 21, 1995
- Bruker Medizintechnik GmbH
- Bernhard Frank
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Continuous phase frequency shift keying modulator
- Patent number 5,382,924
- Issue date Jan 17, 1995
- CSEM Centre Suisse d'Electronique et de Microtechnique SA
- Matthijs D. Pardoen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Biphase modulaton circuit having continuous phase changes
- Patent number 5,049,839
- Issue date Sep 17, 1991
- Samsung Electronics Co., Ltd.
- Soon-Ik Jun
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Zero crossing modulator
- Patent number 5,030,928
- Issue date Jul 9, 1991
- Wilson H. K. Ho
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Frequency synthesis method and a synthesizer apparatus using this m...
- Patent number 4,914,613
- Issue date Apr 3, 1990
- Thomson-CSF
- Gerard Kantorowicz
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Continuous phase shift modulation system with improved spectrum con...
- Patent number 4,897,620
- Issue date Jan 30, 1990
- Plessey Electronic Systems Corp.
- Ronald Y. Paradise
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Coherent frequency exchange keying modulator
- Patent number 4,882,552
- Issue date Nov 21, 1989
- The Secretary of State of or Defence in Her Britannic Majesty's Government of...
- Robert M. Harris
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
FSK with continuous phase and continuous slope at bit transitions
- Patent number 4,700,364
- Issue date Oct 13, 1987
- NEC Corporation
- Tomohiro Miyazaki
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Arrangement for generating an angle-modulated carrier signal of a c...
- Patent number 4,686,688
- Issue date Aug 11, 1987
- U.S. Philips Corporation
- Kah-Seng Chung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
PSK Modulator with reduced adjacent channel interference
- Patent number 4,261,053
- Issue date Apr 7, 1981
- Satellite Business Systems
- Irving Dostis
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Arrangement for combining data symbols in accordance with a predete...
- Patent number 4,105,863
- Issue date Aug 8, 1978
- Bell Telephone Laboratories, Incorporated
- George J. Kustka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Plural oscillator phase continuous frequency encoder
- Patent number 4,063,196
- Issue date Dec 13, 1977
- Control Data Corporation
- Elden Roger Larson
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Plural transistor oscillator phase continuous frequency encoder cir...
- Patent number 4,063,197
- Issue date Dec 13, 1977
- Control Data Corporation
- Robert Donald Dreher
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
PSK modulator with reduced spectrum occupancy
- Patent number 3,973,201
- Issue date Aug 3, 1976
- NCR Corporation
- Carl F. Andren
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3868596
- Patent number 3,868,596
- Issue date Feb 25, 1975
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3826999
- Patent number 3,826,999
- Issue date Jul 30, 1974
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3755739
- Patent number 3,755,739
- Issue date Aug 28, 1973
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3740669
- Patent number 3,740,669
- Issue date Jun 19, 1973
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3713017
- Patent number 3,713,017
- Issue date Jan 23, 1973
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3699479
- Patent number 3,699,479
- Issue date Oct 17, 1972
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
QM-CPM modems with higher order signaling
- Publication number 20080118002
- Publication date May 22, 2008
- John P. Fonseka
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

in which the phase changes in a piecewise linear manner within each symbol period

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

QM-CPM modems with higher order signaling

Radio-frequency signal generator

Digital modulation employing single sideband with suppressed carrier

FSK communication device for digital information

Modulation of transmission data signal in sychronous with transmiss...

Direct 2nd derivative synthesis method for controlling sidelobe ene...

Digital continuous phase modulation for a DDS-driven phase locked loop

Numerically controlled phase lock loop synthesizer/modulator and me...

Transmitting apparatus and receiving apparatus based on phase modul...

Time shift keying digital communications system

Digital frequency generation device

Continuous phase frequency shift keying modulator

Biphase modulaton circuit having continuous phase changes

Zero crossing modulator

Frequency synthesis method and a synthesizer apparatus using this m...

Continuous phase shift modulation system with improved spectrum con...

Coherent frequency exchange keying modulator

FSK with continuous phase and continuous slope at bit transitions

Arrangement for generating an angle-modulated carrier signal of a c...

PSK Modulator with reduced adjacent channel interference

Arrangement for combining data symbols in accordance with a predete...

Plural oscillator phase continuous frequency encoder

Plural transistor oscillator phase continuous frequency encoder cir...

PSK modulator with reduced spectrum occupancy

3868596

3826999

3755739

3740669

3713017

3699479

Patents Applicationslast 30 patents

QM-CPM modems with higher order signaling