where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element

Industry

CPC
H03J7/20

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Parent Industries

HELECTRICITY H03Electronic circuits H03JTUNING RESONANT CIRCUITS SELECTING RESONANT CIRCUITS H03J7/00Automatic frequency control Automatic scanning over a band of frequencies

Current Industry

H03J7/20where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Intelligent scanning system and method for walkie-talkie devices
- Patent number 8,396,473
- Issue date Mar 12, 2013
- Symbol Technologies, Inc.
- Gary Binowski
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Frequency scanning receiver permitting quick PPL setting
- Patent number 6,968,165
- Issue date Nov 22, 2005
- General Research of Electronics, Inc.
- Sadanori Shitara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Radio scan method with spatial channel marking
- Patent number 5,864,752
- Issue date Jan 26, 1999
- Motorola, Inc.
- Ellis A. Pinder
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Multi channel scanning receiver with improved signal strength detec...
- Patent number 5,199,109
- Issue date Mar 30, 1993
- Uniden
- William Baker
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Scanning AM radio with discriminator-driven-scan-stop-circuit
- Patent number 4,580,285
- Issue date Apr 1, 1986
- Sprague Electric Company
- Oliver L. Richards
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Electronic tuning type radio receivers
- Patent number 4,495,650
- Issue date Jan 22, 1985
- Sharp Kabushiki Kaisha
- Hideo Konishi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Carrier detector apparatus useful in a multiband sweep type tuning...
- Patent number 4,387,401
- Issue date Jun 7, 1983
- RCA Corporation
- John G. N. Henderson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Control assembly for electronic tuning receivers
- Patent number 4,300,238
- Issue date Nov 10, 1981
- Sharp Kabushiki Kaisha
- Hideo Konishi
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Channel identification apparatus useful in a multiband sweep type t...
- Patent number 4,254,506
- Issue date Mar 3, 1981
- RCA Corporation
- John G. N. Henderson
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Channel selection voltage generator
- Patent number 4,240,115
- Issue date Dec 16, 1980
- Hitachi, Ltd.
- Masanori Kamiya
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Two-speed searching television tuner
- Patent number 4,220,973
- Issue date Sep 2, 1980
- Indesit Industria Elettrodomestici Italiana S.p.A.
- Emilio Macchetta
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Multifrequency superheterodyne receiver with priority channel monit...
- Patent number 4,190,803
- Issue date Feb 26, 1980
- Sanyo Electric Company, Ltd.
- Eigo Imamura
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Circuit for programming the search circuit of a radio receiver
- Patent number 4,179,661
- Issue date Dec 18, 1979
- General Electric Company
- Raymond W. Harris
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
Intercept receiver for double-side-band, noise-like signals
- Patent number 4,169,993
- Issue date Oct 2, 1979
- The United States of America as represented by the Secretary of the Air Force
- Richard L. Taylor
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Plural band scanning radio with direct switch of RF amplifying tran...
- Patent number 4,157,505
- Issue date Jun 5, 1979
- Regency Electronics
- Kenneth R. Owens
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
3701949
- Patent number 3,701,949
- Issue date Oct 31, 1972
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
3069637
- Patent number 3,069,637
- Issue date Dec 18, 1962
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
3001067
- Patent number 3,001,067
- Issue date Sep 19, 1961
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
2926240
- Patent number 2,926,240
- Issue date Feb 23, 1960
- B60 - VEHICLES IN GENERAL
Information Patent Grant
2882391
- Patent number 2,882,391
- Issue date Apr 14, 1959
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
2300081
- Patent number 2,300,081
- Issue date Oct 27, 1942
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Grant
2283523
- Patent number 2,283,523
- Issue date May 19, 1942
- H03 - BASIC ELECTRONIC CIRCUITRY

Patents Applicationslast 30 patents

Information Patent Application
Intelligent Scanning System and Method for Walkie-Talkie Devices
- Publication number 20080227412
- Publication date Sep 18, 2008
- Gary Binowski
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Frequency acquisition and locking detection circuit for phase lock...
- Publication number 20030100283
- Publication date May 29, 2003
- Narad Networks, Inc.
- Miaochen Wu
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Frequency scanning receiver
- Publication number 20020160736
- Publication date Oct 31, 2002
- Sadanori Shitara
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

where the scanning is accomplished by varying the electrical characteristics of a non-mechanically adjustable element

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Intelligent scanning system and method for walkie-talkie devices

Frequency scanning receiver permitting quick PPL setting

Radio scan method with spatial channel marking

Multi channel scanning receiver with improved signal strength detec...

Scanning AM radio with discriminator-driven-scan-stop-circuit

Electronic tuning type radio receivers

Carrier detector apparatus useful in a multiband sweep type tuning...

Control assembly for electronic tuning receivers

Channel identification apparatus useful in a multiband sweep type t...

Channel selection voltage generator

Two-speed searching television tuner

Multifrequency superheterodyne receiver with priority channel monit...

Circuit for programming the search circuit of a radio receiver

Intercept receiver for double-side-band, noise-like signals

Plural band scanning radio with direct switch of RF amplifying tran...

3701949

3069637

3001067

2926240

2882391

2300081

2283523

Patents Applicationslast 30 patents

Intelligent Scanning System and Method for Walkie-Talkie Devices

Frequency acquisition and locking detection circuit for phase lock...

Frequency scanning receiver