Detection of passages through null of a signal

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CPC
H03D2200/0064

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HELECTRICITY H03Electronic circuits H03DDEMODULATION OR TRANSFERENCE OF MODULATION FROM ONE CARRIER TO ANOTHER H03D2200/00Indexing scheme relating to details of demodulation or transference of modulation from one carrier to another covered by H03D

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H03D2200/0064Detection of passages through null of a signal

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Patents Grantslast 30 patents

Information Patent Grant
Frequency demodulator with resampled output
- Patent number 5,910,752
- Issue date Jun 8, 1999
- QUALCOMM Incorporated
- Daniel Filipovic
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Frequency demodulator and method for asynchronously demodulating sa...
- Patent number 5,475,307
- Issue date Dec 12, 1995
- Pacesetter, Inc.
- Sergiu Silvian
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Information signal processing apparatus
- Patent number 5,465,071
- Issue date Nov 7, 1995
- Canon Kabushiki Kaisha
- Takashi Kobayashi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Communication device with efficient multi-level digital demodulator
- Patent number 5,453,715
- Issue date Sep 26, 1995
- Motorola, Inc.
- Edward K. B. Lee
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Sigma-delta FM demodulator
- Patent number 5,448,202
- Issue date Sep 5, 1995
- Seiko Communications Holding NV
- Jeffrey R. Owen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Sigma-delta digital FM demodulator
- Patent number 5,345,188
- Issue date Sep 6, 1994
- Seiko Telecommunication Systems, Inc.
- Jeffrey R. Owen
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Frequency demodulator circuit with zero-crossing counter
- Patent number 4,707,666
- Issue date Nov 17, 1987
- Deutsche ITT Industries GmbH
- Heinrich Pfeifer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Digital FM detector for digitized FM signals
- Patent number 4,696,018
- Issue date Sep 22, 1987
- ITT Industries, Inc.
- Edmund Zaehringer
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Analog-to-digital converter/demodulator for FM signals
- Patent number 4,593,266
- Issue date Jun 3, 1986
- RCA Corporation
- Richard C. Palmer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
FM Demodulator using interpolation to approximate zero crossings
- Patent number 4,570,126
- Issue date Feb 11, 1986
- U.S. Philips Corporation
- Walter H. Demmer
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
F.M. Demodulator with waveform correction circuit
- Patent number 4,549,143
- Issue date Oct 22, 1985
- U.S. Philips Corporation
- Maurice Bouland
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Digital FM demodulator
- Patent number 4,543,532
- Issue date Sep 24, 1985
- Blaupunkt-Werke GmbH
- Jurgen Kasser
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Gated quadrature detector biased to switch on sinusoidal zero cross...
- Patent number 4,390,845
- Issue date Jun 28, 1983
- Motorola, Inc.
- Lawrence P. Strickland
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Receiver for frequency modulated signals having two quadrature chan...
- Patent number 4,264,975
- Issue date Apr 28, 1981
- U.S. Philips Corporation
- Johannes O. Voorman
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Zero-crossing detector for receivers
- Publication number 20050201490
- Publication date Sep 15, 2005
- Tobias Scholand
- H03 - BASIC ELECTRONIC CIRCUITRY

Detection of passages through null of a signal

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Frequency demodulator with resampled output

Frequency demodulator and method for asynchronously demodulating sa...

Information signal processing apparatus

Communication device with efficient multi-level digital demodulator

Sigma-delta FM demodulator

Sigma-delta digital FM demodulator

Frequency demodulator circuit with zero-crossing counter

Digital FM detector for digitized FM signals

Analog-to-digital converter/demodulator for FM signals

FM Demodulator using interpolation to approximate zero crossings

F.M. Demodulator with waveform correction circuit

Digital FM demodulator

Gated quadrature detector biased to switch on sinusoidal zero cross...

Receiver for frequency modulated signals having two quadrature chan...

Patents Applicationslast 30 patents

Zero-crossing detector for receivers