| Patents for H03B 23 - Generation of oscillations periodically swept over a predetermined frequency range (246) |
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| 09/04/1984 | US4470025 Method and circuitry for chirped oscillator automatic frequency control |
| 08/28/1984 | US4468638 Linear sweep frequency modulator for FM/CW radio altimeter |
| 12/13/1983 | US4420731 Controlled voltage yttrium iron garnet (YIG) resonator apparatus |
| 12/07/1983 | EP0095732A1 Spectrum analyser |
| 11/22/1983 | US4417218 Linearizing circuit for a high frequency voltage controlled oscillator |
| 10/04/1983 | US4407588 Electronic oscillation counting timer |
| 09/14/1983 | EP0088669A1 Device for the digital generation of a frequency-modulated signal, and radiofrequency device comprising such a digital device |
| 04/26/1983 | US4381461 Frequency synthesizer |
| 01/04/1983 | US4367473 Distance measuring equipment utilizing frequency modulation |
| 11/16/1982 | US4359779 FM Transmitter with frequency ramp phase and amplitude correction means |
| 09/14/1982 | US4349789 Stabilized sweep frequency generator with adjustable start and stop frequencies |
| 08/24/1982 | US4346352 Linear and logarithmic sweep control circuits for a voltage-controlled oscillator |
| 07/27/1982 | US4342008 Switched tuneable frequency multiplier |
| 07/27/1982 | US4342007 Swept frequency oscillator with compensation for variations in tuning sensitivity |
| 06/22/1982 | US4336511 Method and apparatus for increasing the sweep rate of a linearly swept frequency oscillator |
| 04/13/1982 | US4325023 Device for inspecting an individual high frequency signal selected according to frequency from a broad frequency band |
| 03/16/1982 | US4320355 Sweep signal generation system |
| 12/22/1981 | US4307398 Tracking filter for use in hand held radar device |
| 12/15/1981 | US4306186 Frequency marker display system |
| 09/08/1981 | US4288750 Surface acoustic wave time chirp devices |
| 09/01/1981 | US4287510 Electronic signal generator with periodically varying frequency |
| 07/07/1981 | US4277763 Non-linear predistortion linearizing circuit for a varactor diode tuned oscillator |
| 06/30/1981 | US4276549 FM-CW Radar distance measuring apparatus |
| 01/13/1981 | US4245196 Highly-linear closed-loop frequency sweep generator |
| 08/12/1980 | US4217655 Clock circuit having a swept output frequency |
| 06/11/1980 | EP0011713A1 Acoustic signal generator with periodically changing output signal frequency |
| 03/04/1980 | US4191930 Digitally settable frequency generator |
| 07/10/1979 | US4160958 Sampling linearizer utilizing a phase shifter |
| 12/19/1978 | US4130808 Phase lock stabilized swept frequency signal source |
| 12/12/1978 | US4129832 Method and means for linearizing a voltage controlled oscillator sweep generator |
| 10/31/1978 | US4123719 Chirp phase distortion detector in a wideband linearization feedback control loop |
| 10/10/1978 | US4119927 Constant rate sweep frequency generator |
| 09/05/1978 | US4112382 Digital sweep circuit for generating sawtooth wave form |
| 03/07/1978 | US4078209 Sound communication system with speaker protection for frequencies below a predetermined minimum |
| 09/13/1977 | US4048567 Broad band microwave receiver gain calibrator |
| 08/23/1977 | US4044310 Circuitry for generating a sine wave and/or cosine wave from a pulse signal |
| 07/26/1977 | US4038612 Swept oscillator automatic linearizer |
| 07/12/1977 | US4035733 Pulse signal conditioning circuit |
| 06/28/1977 | US4032859 1 to 18 ghz microwave signal generator |
| 06/07/1977 | US4028587 Marker circuit |
| 01/04/1977 | US4001726 High accuracy sweep oscillator system |
| 08/31/1976 | US3978411 Sweep output generator having a frequency modulated local oscillator for the station selector of a television receiver |
| 06/22/1976 | US3965438 Frequency locking system for a voltage controlled sweep frequency oscillator |
| 06/08/1976 | US3962653 Arrangement for simultaneously producing signals having an increasing frequency and signals having a decreasing frequency |
| 02/17/1976 | US3938394 Combination balance analyzer and vibration spectrum analyzer |
| 01/06/1976 | US3931586 Scanning oscillator stabilization |