| Patents for H03G 7 - Volume compression or expansion in amplifiers (2,243) |
|---|
| 01/27/2005 | US20050018862 Digital signal processing system and method for a telephony interface apparatus |
| 01/12/2005 | EP1360760B1 Amplitude limitation |
| 01/05/2005 | CN1183664C Impadance blocking filter circuit |
| 01/04/2005 | CA2286268C Method and apparatus for noise reduction, particularly in hearing aids |
| 12/30/2004 | US20040267842 Device with dB-to-linear gain conversion |
| 12/23/2004 | WO2004112245A1 Dynamic range control of an audio signal and method of its operation |
| 12/23/2004 | WO2004112142A1 Limiter circuit and semiconductor integrated circuit thereof |
| 12/01/2004 | EP1020027B1 Cmos differential voltage controlled logarithmic attenuator and method |
| 11/25/2004 | WO2004086616A3 Clip detection in pwm amplifier |
| 11/25/2004 | WO2003104924A3 Acoustical virtual reality engine and advanced techniques for enhancing delivered sound |
| 11/25/2004 | US20040234079 Method and system for acoustic shock protection |
| 11/25/2004 | US20040232990 Power amplifier module |
| 11/23/2004 | US6822433 Gain and phase detector having dual logarithmic amplifiers |
| 11/11/2004 | WO2004098053A2 Volume and compression control in movie theaters |
| 11/11/2004 | US20040222846 Power supply based audio compression for digital audio amplifier |
| 11/11/2004 | CA2520118A1 Volume and compression control in movie theaters |
| 11/03/2004 | EP1472786A2 A method for decreasing the dynamic range of a signal and electronic circuit |
| 11/03/2004 | CN1174616C Reversible wavelet change and embedded code-flow process |
| 11/02/2004 | CA2363400C System and method for inverting automatic gain control (agc) and soft limiting |
| 10/28/2004 | US20040213420 Volume and compression control in movie theaters |
| 10/27/2004 | EP1471767A2 Method and system for acoustic shock protection |
| 10/21/2004 | US20040207466 Systems and methods for providing multi channel pulse width modulated audio with staggered outputs |
| 10/20/2004 | EP1469595A2 Negative feedback amplifier |
| 10/19/2004 | US6807280 Audio signal processing circuit for reducing noise in an audio signal |
| 10/14/2004 | US20040203430 Peak power reduction using windowing and filtering |
| 10/13/2004 | EP1466415A1 Wireless receiver without AGC |
| 10/07/2004 | WO2004086616A2 Clip detection in pwm amplifier |
| 10/07/2004 | WO2004086614A1 Multi-chip pwm synchronization and communication |
| 10/07/2004 | WO2004086611A2 Systems and methods for implementing a sample rate converter using hardware and software to maximize speed and flexibility |
| 10/07/2004 | WO2004086609A1 Systems and methods for protection of audio amplifier circuits |
| 10/07/2004 | WO2004045226A3 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics |
| 10/07/2004 | US20040196088 Exponential conversion circuit and variable gain circuit |
| 09/30/2004 | US20040190734 Binaural compression system |
| 09/30/2004 | CA2424093A1 Method and device for acoustic shock protection |
| 09/23/2004 | WO2004082322A2 Apparatus and method of limiting power applied to a loudspeaker |
| 09/23/2004 | US20040186602 Multi-chip PWM synchronization and communication |
| 09/23/2004 | US20040184627 Systems and methods for protection of audio amplifier circuits |
| 09/23/2004 | US20040184621 Clip detection in PWM amplifier |
| 09/23/2004 | US20040184572 Output stage synchronization |
| 09/22/2004 | CN1531777A Programmable logarithmic gain adjustment for open-loop amplifiers |
| 09/21/2004 | US6795740 Rectifying overflow and underflow in equalized audio waveforms |
| 09/16/2004 | US20040178852 Apparatus and method of limiting power applied to a loudspeaker |
| 09/10/2004 | WO2004077666A1 Gain variable voltage/current conversion circuit and filter circuit using the same |
| 09/07/2004 | US6788145 Circuit configuration for producing exponential predistortion for a variable amplifier |
| 09/02/2004 | US20040169551 Active filter circuit with dynamically modifiable gain |
| 08/31/2004 | US6785655 Method for independent dynamic range control |
| 08/31/2004 | US6784651 Current source assembly controllable in response to a control voltage |
| 08/24/2004 | US6782366 Method for independent dynamic range control |
| 08/17/2004 | US6778966 Segmented mapping converter system and method |
| 08/17/2004 | US6777999 Exponential conversion circuit and variable gain circuit |
| 08/12/2004 | US20040155708 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics |
| 08/05/2004 | WO2004010412A3 Circuit arrangement for reducing the dynamic range of audio signals |
| 08/04/2004 | CN1518395A Electroacoustical transducing by low frequency augmenting devices |
| 08/03/2004 | US6771128 Power amplifier module |
| 07/20/2004 | US6765436 Power supply based audio compression for digital audio amplifier |
| 07/15/2004 | US20040138769 Digital amplifier and method for adjusting gain of same |
| 07/13/2004 | US6763228 Precision automatic gain control circuit |
| 07/08/2004 | WO2004023631A3 Power supply based audio compression for digital audio amplifier |
| 07/06/2004 | US6760452 Multi-channel audio signal limiter with shared clip detection |
| 06/29/2004 | US6757396 Digital audio dynamic range compressor and method |
| 06/22/2004 | US6754479 Squaring circuit and electronic device using same |
| 06/17/2004 | WO2004051876A1 Power limit device and digital radio transmitter using the same |
| 06/17/2004 | US20040113683 Linear-in-dB variable gain amplifier |
| 06/15/2004 | US6750715 Logarithmic IF amplifier with dynamic large signal bias circuit |
| 06/10/2004 | US20040109277 Limit circuit |
| 06/09/2004 | EP1427254A2 Electroacoustical transducing with low frequency aufmenting devices |
| 06/09/2004 | EP1427103A2 CMOS differential voltage controlled logarithmic attenuator and method |
| 06/08/2004 | US6747516 Power controller circuit for a power amplifier stage |
| 06/03/2004 | WO2003063346A3 A method for decreasing the dynamic range of a signal and electronic circuit |
| 06/03/2004 | US20040105559 Electroacoustical transducing with low frequency augmenting devices |
| 06/01/2004 | US6744319 Exponential function generator embodied by using a CMOS process and variable gain amplifier employing the same |
| 05/27/2004 | WO2004045226A2 Continuously variable gain radio frequency driver amplifier having linear in decibel gain control characteristics |
| 05/25/2004 | US6741966 Methods, devices and computer program products for compressing an audio signal |
| 05/25/2004 | US6741124 Differential gain adjusting amplifier system with selectable electroluminescent differential photocell attenuation |
| 05/25/2004 | CA2245525C Fat sound creation means |
| 05/21/2004 | WO2004042918A1 Power controller circuit for a power amplifier stage |
| 05/13/2004 | US20040091035 Active filter circuit with dynamically modifiable internal gain |
| 05/13/2004 | DE10350475A1 Mehrkanalaudiosignalbegrenzer mit gemeinsamer Beschneidungserfassung Mehrkanalaudiosignalbegrenzer common with clipping detection |
| 05/11/2004 | US6734729 Closed loop power amplifier control |
| 05/06/2004 | US20040085129 Power controller circuit for a power amplifier stage |
| 05/06/2004 | EP1415393A2 Method for processing an input signal for producing an output signal and an application of said method in hearing aids and devices |
| 04/29/2004 | US20040081324 Multi-channel audio signal limiter with shared clip detection |
| 04/20/2004 | WO2004036743A1 Means for limiting an output signal of an amplifier stage |
| 04/15/2004 | US20040070438 Limiter |
| 04/13/2004 | US6720817 All NPN class-AB log-domain integrator with supporting input and output circuitry for low-voltage and high-frequency continuous-time filtering |
| 04/08/2004 | US20040066232 Variable-gain differential input and output amplifier |
| 04/07/2004 | EP1405408A2 Programmable logarithmic gain adjustment for open-loop amplifiers |
| 04/06/2004 | US6717469 Gain control circuit for controlling a gain in a variable gain cell |
| 04/01/2004 | WO2004027987A1 Variable gain amplifier |
| 03/30/2004 | US6714074 Power amplifier clipping circuit for minimizing output distortion |
| 03/30/2004 | US6714062 Method and apparatus for a limiting amplifier with precise output limits |
| 03/23/2004 | US6711391 Gain linearizer for variable gain amplifiers |
| 03/23/2004 | US6710658 Non-linear signal processor |
| 03/18/2004 | WO2004023631A2 Power supply based audio compression for digital audio amplifier |
| 03/17/2004 | CN1482812A Method and apparatus for compression using reversible wavelet transforms and an embedded codestream |
| 03/17/2004 | CN1482811A Method and apparatus for compression using reversible wavelet transforms and an embedded codestream |
| 03/11/2004 | US20040047480 Process to adapt the signal amplification in a hearing device as well as a hearing device |
| 03/03/2004 | EP1320928A4 A gmc filter and method for suppressing unwanted signals introduced by the filter |
| 03/02/2004 | US6700443 Reduction of sensitivity of an amplifier to an offset voltage |
| 02/26/2004 | WO2003104925A3 Method and system for all digital gain control |