| Patents for H03B 28 - Generation of oscillations by methods not covered by groups , including modification of the waveform to produce sinusoidal oscillations (1,097) |
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| 06/09/1992 | US5121350 Digital tone generation based on difference equations |
| 06/09/1992 | US5121087 Electronic resonator employing an FED resonator element |
| 06/09/1992 | US5121069 Low frequency sinewave generator |
| 05/27/1992 | EP0486851A2 Direct digital synthesizer with feedback shift register |
| 05/20/1992 | EP0486095A1 Digital receiver |
| 05/12/1992 | US5113139 Low-distortion waveform generating method and waveform generator using the same |
| 05/06/1992 | CN1016553B Subscriber unit for wireless digital subscriber communication system |
| 03/19/1992 | DE4029409A1 Amplitude-coupled voltage source e.g. for polyphase motor |
| 03/11/1992 | EP0390868A4 Pseudorandom dither for frequency synthetis noise |
| 03/11/1992 | CN1059433A Generator for amplitud-coupled voltages |
| 03/10/1992 | US5095279 Variable frequency sine wave carrier signal generator |
| 03/05/1992 | WO1992003871A1 Generator for amplitude-coupled voltages |
| 02/27/1992 | DE4026987A1 Generator for amplitude coupled voltages corresp. to time curves - has tapping system providing output voltages corresp. to different curve shapes |
| 02/05/1992 | EP0469233A2 Digital synthesizer with phase memory |
| 01/28/1992 | US5084681 Digital synthesizer with phase memory |
| 12/27/1991 | EP0462714A2 Generation of phase related waveforms |
| 12/04/1991 | EP0459446A1 Numerical controlled oscillator |
| 12/03/1991 | US5070254 Pulse generators with constant mark/space ratio and small phase modulation jitter |
| 11/05/1991 | US5063354 Frequency synthesizing device |
| 10/16/1991 | EP0451831A2 Low-distorted waveform generating method and waveform generator using the same |
| 10/15/1991 | US5057786 Quadrature amplitude modulation wave demodulator provided with band-pass filters for fixed equalizer |
| 10/15/1991 | US5057703 Working/standby clock pulse supply for digital systems |
| 10/08/1991 | US5056115 Device for the division, at an optimum sampling rate, of a passband signal into its components on two carriers in quadrature |
| 09/30/1991 | WO1991015056A1 Direct digital synthesizer driven phase lock loop frequency synthesizer with hard limiter |
| 09/19/1991 | DE4008175A1 Producing EM oscillations with periodic or chaotic breakdowns - using restricted conductivity zones sandwiching breakdown high resistance layer subject to external effects |
| 09/04/1991 | EP0444650A2 Phase-locked loop type frequency synthesizer having improved loop response |
| 08/28/1991 | EP0443242A2 High resolution direct digital synthesizer |
| 08/07/1991 | EP0440283A2 Multiple channel sine synthesizer |
| 07/25/1991 | DE4001555A1 Digital oscillator generating frequency controlled signal - forms transmission signal in accumulator, delayed by period dependent on accumulator content |
| 07/24/1991 | EP0437785A2 AC signal generating apparatus for generating a voltage or current standard |
| 07/23/1991 | US5034977 Phase accumulation dual tone multiple frequency generator |
| 07/17/1991 | EP0437362A2 Adjacent channel selectivity signal generator system |
| 07/12/1991 | CA2019291A1 Adjacent channel selectivity signal generator system |
| 07/02/1991 | US5028887 Direct digital synthesizer driven phase lock loop frequency synthesizer with hard limiter |
| 04/16/1991 | US5008900 Subscriber unit for wireless digital subscriber communication system |
| 03/19/1991 | US5001660 Waveform generation method using stored complex data |
| 03/06/1991 | EP0415111A2 Back-up clock supply for digital systems |
| 03/05/1991 | US4998072 High resolution direct digital synthesizer |
| 03/05/1991 | CA1281080C Digital zero-if selectivity section |
| 02/27/1991 | EP0414444A2 Phase accumulator with dithered incrementing of accumulation due to fine phase components |
| 02/27/1991 | CN1049581A Subscriber unit for wireless digital subscriber communication system |
| 02/26/1991 | CA2023327A1 Phase accumulator with dithered incrementing of accumulation due to fine phase components |
| 02/06/1991 | EP0411764A2 Arbitrary waveform generator with adjustable spacing |
| 01/23/1991 | EP0144344B1 Ringing signal generator |
| 01/08/1991 | US4984186 Phase accumulator with dithered incrementing of accumulation due to fine phase components |
| 01/02/1991 | CA1278609C Multi-channel modulated numerical frequency synthesizer |
| 11/20/1990 | CA1276690C Pulse shaper |
| 11/06/1990 | CA1276042C Digitally programmable signal generator and method |
| 10/31/1990 | EP0395423A2 Signal generator method and apparatus |
| 10/24/1990 | EP0393856A2 Modulation of adjacent channels |
| 10/10/1990 | EP0391524A2 Phase accumulation dual tone multiple frequency generator |
| 10/10/1990 | EP0390868A1 Pseudorandom dither for frequency synthetis noise. |
| 09/26/1990 | EP0389032A1 Pulse generators |
| 09/25/1990 | US4959616 For generating a periodic wave form data |
| 09/11/1990 | US4956798 Arbitrary waveform generator with adjustable spacing |
| 08/21/1990 | US4951237 Direct digital synthesizer with selectably randomized accumulator |
| 07/04/1990 | EP0375880A1 Frequency synthesis device |
| 07/03/1990 | CA1271233A1 Driver circuit |
| 06/26/1990 | US4937773 Sine wave oscillator and method of operating same |
| 06/06/1990 | EP0371193A1 Process and device for the conversion of voltage into frequency |
| 04/03/1990 | US4914397 Digital frequency converter |
| 02/27/1990 | US4905177 High resolution phase to sine amplitude conversion |
| 02/13/1990 | US4901265 Pseudorandom dither for frequency synthesis noise |
| 02/13/1990 | US4901027 Signal generator |
| 01/17/1990 | EP0350663A2 Circuit arrangement for the demodulation of a subcarrier |
| 01/09/1990 | US4893316 Digital radio frequency receiver |
| 01/03/1990 | EP0349162A2 Methods of generating waveforms |
| 11/14/1989 | US4881190 Digitally programmable signal generator and method |
| 10/25/1989 | EP0338742A2 Direct digital synthesizer with selectably randomized accumulator |
| 09/27/1989 | EP0333804A1 Signal source for use with an lc tank circuit |
| 08/22/1989 | US4860238 Digital sine generator |
| 07/27/1989 | WO1989006838A1 High resolution phase to sine amplitude conversion |
| 07/05/1989 | EP0322743A2 Signal generator |
| 06/29/1989 | WO1989006009A1 Pseudorandom dither for frequency synthetis noise |
| 06/20/1989 | US4840456 Methods of and apparatus for generation of radio frequency signals |
| 06/13/1989 | US4839842 Digital tone detection and generation |
| 05/23/1989 | US4833427 Signal source for use with an LC tank circuit |
| 04/20/1989 | WO1989003617A1 Signal source for use with an lc tank circuit |
| 04/19/1989 | EP0312370A2 Digital oscillation apparatus |
| 04/19/1989 | EP0312192A2 Digital frequency converter |
| 04/18/1989 | US4823090 Digital signal synthesis using low frequency sampling clock |
| 03/01/1989 | EP0305187A2 A digital frequency synthesiser |
| 02/21/1989 | US4806881 Multi-channel modulated numerical frequency synthesizer |
| 01/25/1989 | EP0300265A2 Digital tone detection method |
| 01/10/1989 | US4797844 Digital mixing apparatus which attenuates the sum frequency of the mixed signals |
| 12/06/1988 | CA1246156A1 Multiphase frequency selective phase locked loop with multiphase sinusoidal and digital outputs |
| 11/02/1988 | EP0216803A4 Digital zero-if selectivity section. |
| 08/17/1988 | EP0278045A2 Number controlled modulated oscillator |
| 05/24/1988 | US4746880 Number controlled modulated oscillator |
| 05/04/1988 | EP0265637A2 Pulse shaper |
| 04/26/1988 | US4740995 Variable frequency sinusoidal signal generator, in particular for a modem |
| 04/19/1988 | US4739277 Triggered, programmable skew signal generator |
| 02/23/1988 | US4727570 Waveform generators |
| 11/10/1987 | US4706046 Resonator made of nonpiezoelectric material with high quality coefficient |
| 09/09/1987 | EP0235900A2 Triggered, programmable skew signal generator |
| 08/19/1987 | EP0232789A1 Digital sine wave generator |
| 06/09/1987 | US4672568 Method for digital voltage controlled oscillator |
| 05/26/1987 | US4669024 Multiphase frequency selective phase locked loop with multiphase sinusoidal and digital outputs |
| 05/20/1987 | CN86104796A Digital mixing apparatus |
| 05/12/1987 | US4665372 Method and circuit for producing sinusoidal waves having harmonic elimination from 2π periodical square waves |