| Patents for H04S 7 - Indicating arrangements; Control arrangements, e.g. balance control (4,080) |
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| 04/01/1987 | EP0215951A1 Graphic balancer |
| 03/03/1987 | US4648117 Mobile sound field correcting device |
| 03/03/1987 | US4648115 Pan-pot control apparatus |
| 03/03/1987 | US4648113 Method and apparatus for providing a visual indication of a relationship between two signals |
| 02/24/1987 | US4646348 Blend control for low voltage stereo decoders |
| 01/20/1987 | US4638506 Sound field simulation system and method for calibrating same |
| 12/09/1986 | US4628530 Automatic equalizing system with DFT and FFT |
| 11/18/1986 | CA1214113A1 Stereophonic sound producing apparatus for a game machine |
| 09/25/1986 | WO1986005409A1 Video display of two-channel audio signals |
| 08/28/1986 | WO1986005059A1 Graphic balancer |
| 08/20/1986 | CN86100364A Graphic balancer |
| 08/19/1986 | CA1210095A1 Automatic equalizing system with dft or fft |
| 05/13/1986 | US4589129 Signal decoding system |
| 04/22/1986 | US4584536 Balance control circuit |
| 03/25/1986 | US4577540 Electronic musical instrument having a pan-pot function |
| 03/04/1986 | US4574391 Stereophonic sound producing apparatus for a game machine |
| 01/29/1986 | EP0169605A2 Balance circuit arrangement for electrical reproduction devices, and balance control therefor |
| 01/02/1986 | EP0166543A2 Mobile sound field correcting device |
| 12/27/1985 | EP0165733A2 Method and apparatus for measuring and correcting acoustic characteristic in sound field |
| 12/17/1985 | US4559569 Circuit arrangement for correcting frequency response in accordance with frequency response of a sound field |
| 06/11/1985 | US4522283 Noise measurement |
| 03/19/1985 | CA1184259A1 Stereo/monaural selecting circuit |
| 12/27/1984 | CA1179949A Apparatus for matching the d.c. volume control characteristics of two audio channels |
| 12/27/1984 | CA1179948A Video disc player for monophonic, stereophonic and bilingual records |
| 10/23/1984 | US4479235 Switching arrangement for a stereophonic sound synthesizer |
| 09/26/1984 | EP0119791A1 Circuit arrangement for correcting frequency response in accordance with frequency response of a sound field |
| 09/26/1984 | EP0119645A1 Automatic equalizing system with discrete Fourier transform (DFT) or fast Fourier transform (FFT) |
| 09/18/1984 | US4472834 Loudspeaker system |
| 08/07/1984 | US4464781 Equalizer apparatus |
| 06/19/1984 | US4455673 Stereo indicating circuit |
| 02/21/1984 | US4433209 Stereo/monaural selecting circuit |
| 01/03/1984 | US4424574 Function presetting circuit for an audio/video recording and reproducing system |
| 12/13/1983 | US4420711 Circuit arrangement for different color light emission |
| 10/04/1983 | US4408095 Acoustic apparatus |
| 09/13/1983 | US4404429 Matching volume control characteristics for two channels |
| 09/13/1983 | US4404427 Audio signal processing system |
| 09/13/1983 | CA1153701A1 Audio signal processing system |
| 07/26/1983 | US4395739 Recording/reproducing apparatus with selective attenuation of reproduced signals to facilitate comprehension of external speech signals |
| 05/17/1983 | CA1146633A1 Tuning and volume indicator |
| 04/06/1983 | EP0075615A1 Sound field simulation system and method for calibrating same |
| 02/16/1983 | EP0072101A1 Stereo indicating circuit |
| 02/01/1983 | CA1140476A1 Recording/reproducing apparatus with selective attenuation of reproduced signals to facilitate comprehension of external speech signals |
| 10/26/1982 | US4356350 FM Receiver |
| 07/13/1982 | US4339711 Spectrum displaying apparatus for multichannel signals |
| 03/17/1982 | EP0047281A1 Automatic corrector for the frequency transmission characteristics of an electro acoustic channel |
| 03/09/1982 | CA1119527A1 Multi-dimensional audio projector |
| 02/16/1982 | CA1118363A1 Varying loudspeaker spatial characteristics |
| 12/15/1981 | US4306113 Method and equalization of home audio systems |
| 09/17/1981 | WO1981002658A1 Automatic corrector for the frequency transmission characteristics of an electro acoustic channel |
| 06/11/1981 | WO1981001636A1 Audio signal processing system using a signal level gain control element |
| 05/26/1981 | US4270216 Tuning and volume indicator |
| 05/26/1981 | CA1102000A1 Detection and monitoring device |
| 02/04/1981 | EP0023204A1 Device for remote control of stereo hi-fi amplifier parameters |
| 11/25/1980 | US4236041 Stereophonic signal indicating apparatus |
| 10/14/1980 | US4228402 Device for remote control of stereo hi-fi amplifier parameters |
| 09/09/1980 | US4221928 Noise reduction circuit for stereo signals |
| 08/19/1980 | US4218583 Varying loudspeaker spatial characteristics |
| 04/17/1980 | WO1980000768A1 Device for remote control of stereo hi-fi amplifier parameters |
| 04/01/1980 | US4196313 Polyphonic sound system |
| 02/06/1980 | EP0007453A1 Varying loudspeaker spatial characteristics |
| 01/08/1980 | US4182930 Detection and monitoring device |
| 11/27/1979 | US4176252 Multi-dimensional audio projector |
| 05/01/1979 | US4152664 Constant power balance control and method |
| 04/10/1979 | US4149036 Crosstalk compensating circuit |
| 01/16/1979 | CA1046670A1 Multicolor display for the visual-aesthetic portrayal of electric signals |
| 09/12/1978 | US4113984 Voltage translating circuit for volume and balance control of a four-channel audio system |
| 03/28/1978 | US4081829 Audio activated video display |
| 02/28/1978 | US4076959 Volume, tone and balance control for multi-channel audio systems |
| 12/13/1977 | US4063032 Constant power balance controls for stereophonic and quadraphonic sound systems |
| 02/22/1977 | US4008641 Device for modulating a musical tone signal to produce a rotating sound effect |
| 11/16/1976 | US3992590 Matrix amplifying circuit |
| 07/13/1976 | US3969588 Audio pan generator |
| 05/11/1976 | US3956709 Balance control system for multichannel audio apparatus |
| 04/27/1976 | US3953686 Multichannel record disc recording system |
| 04/20/1976 | US3952156 Signal processing system |
| 03/16/1976 | US3944941 Switching circuit for use with balanced transformerless amplifier |
| 03/16/1976 | US3944748 Means and method of reducing interference in multi-channel reproduction of sounds |
| 03/09/1976 | US3943293 Stereo sound reproducing apparatus with noise reduction |
| 02/24/1976 | US3940789 Multicolor display for the visual-aesthetic portrayal of electric signals |
| 02/17/1976 | US3939451 Balance control for use in 4-channel stereophonic system |