Signal processing apparatus and signal processing method A signal processing apparatus includes a plurality of equalizer each used for a corresponding frequency band, controller for setting a gain value in each of the plurality of equalizer, an...
2
200610171987
Device and method for controlling a voltage control signal A device is disclosed that includes an amplification part for a linear transmitter, the amplification part being configured to amplify a transmission signal in accordance with a supply vo...
Automatic compensation of gain versus temperature An apparatus and method of automatically compensating gain versus temperature in a circuit of a measurement instrument that is subject to gain drift with temperature senses an ambient tem...
Programmable digital gain circuit and corresponding method Equalization circuitry may be used to compensate for the attenuation of a data signal caused by a transmission medium. The control circuitry for the equalization circuitry may generate co...
Self-biased signal limiter and limiting method therefore A slicer with large input common mode range is provided. The slicer includes an input stage coupled to receive an input signal, a current source for providing current for the input stage,...
Sound quality adjustment device
LPF and HPF extract bass and treble ranges, respectively, from an input sound signal, and bass and treble boost circuits perform dynamic range expansion/contraction on the extracted bass...
Mean signal power detection method and system The invention relates to a signal average power checking method and relative system, used to check signal average power, wherein said method comprises that: (1), peak detection on signal;...
Automatic gain control using multi-comparators
A method and apparatus for an automatic gain control (AGC) loop that utilizes multiple comparators to provide constant bandwidth tracking and step response, as well as fine granularity f...
22
200610076263
Power amplifier with automatic switching function
A power amplifier with automatic switching functions is disclosed. The power amplifier can variably control output power of circuits as all of the circuits are operated when relatively l...
A control method of a hardware cell The invention discloses a hardware unit control method, the steps including: hardware control unit receives at least one hardware unit trigger condition; according to the priority level o...
25
200610075505
Agc circuit
An AGC circuit comprises a variable gain amplifier that has a gain set variably and amplifies an input signal with the gain; a detection circuit that detects an output signal amplified b...
Active limiter with integrated sensor
An integrated circuit includes a first RF port and a second RF port. A limiter section is disposed between the first RF port and the second RF port and a detector section coupled to an R...
29
200610005469
Slide operation device A slide control device capable of reducing an influence on sensor detection accuracy of a pressing force at a time of operation, and taking measures against a vertical load to the entire ...
Bass boosting processing method and device
The method for bass boosting treatment comprises: transforming the base frequency signal on low-frequency range into effective combination of second, third and fourth harmonic signals wi...
33
200510132476
Inductance control system and method for control sound volume This invention provides an induction system and a method for controlling volumes, in which, the system includes a magnetic induction pen to carry out multiple actions and an induction mod...
Audio-frequency adjusting system The invention is concerned with the audio adjusting system that is fit for the video play equipment, it can create the first sound signal and the image signal, the system includes: the si...
36
200510120714
Audio-frequency processor and volume management The invention is concerned with the method for volume management, includes the following steps: gets several sample value and the current yield value of the audio signal during the first ...
Sound-volume control system and method Being applicable to electronic equipment with audio output function, the volume control system includes following modules: setting module is in use for setting up volume parameter for the...
39
200510111165
Audio-frequency silenced soft removing apparatus and method The invention relates to an audio mute soft release device and method, for example, on the condition of releasing audio mute because of terminating trick play, DVD player and various CD d...
A system and method to manage sound volume The provided sound volume management method comprises: receiving control signal for outputting audio signal; obtaining current time and its time interval; reading the set gain in table or...
42
200510123737
Integrated transfer resistance amplifier with auto-gain control
This invention relates to an IC transimpedance amplifier automatically controlling the gain in the optical communication field including a primary amplifier unit for amplifying input sig...
43
200510116601
Method for preventing output device demaged This invention relates to a method for preventing loss of output devices used in preventing loss of an output device set in a system containing a processor and the method includes the fol...
44
200510118163
Variable gain amplifying circuit and relative method
This invention provides a variable gain amplifying circuit and its related method, which provides a variable reference current according to the value of a control-signal, then divides th...
45
200510101240
A system and method to manage sound volume The provided sound volume management method comprises: acquiring music type of the audio file; reading a set table to obtain the relative gain in table or using regulated gain to decode f...
46
200510116906
Volume control method and system This invention relates to a volume control method and a system, in which, the system includes: a storage unit used in storing volume control parameters preset by software programs in said...
47
200510031033
Control system of volume range and method thereof This invention discloses a analogue integration system and its method applied in one display device, wherein, the system comprises one record unit, one sample unit and one process unit, w...
Volume management system and method The invention is concerned with management method for volume. Read an audio frequency data and decode it to get a figure audio frequency signal. Sampling the figure audio frequency signal...
51
200510100062
Volume management system and method The invention is concerned with management system for volume. Read an output simulation audio frequency signal and transform it into a figure audio frequency signal. Sampling the figure a...
52
200510105562
Method for removing loundspeaker noise The invention is concerned with the method to eliminate the puff of the loudhailer, it is: the message playing equipment outputs a pause order or a stop order to the loudhailer, the contr...
53
200510108717
Voltage-adjusting amplifier for signal processing system A voltage controlling amplifier for signal processing system, including: the voltage outputting end, the first voltage to current commutator, the plus adjusting circuit, the reference cur...
Audio frequency processing system and method This invention provides one audio process method, which comprises the following steps: reading one audio files and decoding files to generate one digital audio signals; getting one reset ...
56
200510037114
Audio frequency processing system and method This invention provides one audio process system, which comprises the following steps: getting output analogue signals; converting analogue signal into digital audio signals; sampling dig...
Integrated multipath gain comparing control amplifying circuit The invention relates to an increment compare control amplifying circuit of integrated circuit. Wherein, it can based on the strength of signal and the amplified time of internal amplify ...
Limiter of segmented gains, and control method The invention is designed for use in connecting with an external audio amplifier which has a gain value and outputs an outputting signal according to an inputted signal and said gain valu...
61
200510041325
Volume automatic regulating device and its method The invention relates to an automatic volume adjuster and a relative method, wherein judging the change of external environment distantly; based on said result, adjusting the volume autom...
62
200510088160
Music reproduction device for portable device
The invention discloses a music regenerating device to output sound signal from self-portable equipment (12) by loudspeakers (13, 14), which comprises the following parts: machine kind j...
Reception control circuit and reception control method
In order to realize a demodulator circuit and a demodulation method of controlling the amplification degree of an AGC in order that the optimum C/N value near the best C/N value can be a...
Volume control method and system
The disclosed auto gain volume control method for communication comprises: pre-defining voice flow state to decide in transmission for AGC and smooth transition from high pitch to silenc...
Power amplifier output power control loop
The invention relates to a control circuit of output power of power amplifier, which comprises: a directed coupler electrically connected to the power amplifier to receive signal; a powe...
69
200520107521
Embedded power amplifying apparatus This utility model discloses an embedded power amplifying device embedded in the wall which belongs to the audio device. The middle part and the top part of the panel are equipped with a ...
70
200510076145
Radio communication receiver The inveniton relates to a receiver in a radio communication system for optimizing a use of an available dynamic range. The receiver has an automatic gain controller in an automatic gain ...
71
200580017302
Acoustic device There is provided an acoustic device capable of automatically setting a gain appropriate for both of the average signal intensity of input audio and an instantaneous signal intensity and ...
Automatic volume regulation of electronic device
The method comprises: when detecting a start of a known sound effect, deciding if the electronic device executes GPD application program, and thereby determining if it is needed to tune ...
Method and apparatus for frequency correction
The invention discloses a method and device for shifting a resonance frequency according to an operating frequency, obtaining a control signal from a frequency synthesizer to indicate a ...
Automatic current reduction biasing technique for RF amplifier A power amplifier (PA) circuit is disclosed that comprises a PA output stage having a first amplifying portion having a first gain portion and disposed in parallel with a second amplifyin...
Method and system for ensuring audio safety The invention concerns a method (200) and a system (100) for ensuring audio safety in an audio device (110). The system includes a processor (112), a sensor (116), an analog safety circui...
High-frequency power amplifier and communication apparatus
A temperature compensation circuit 145 included in a collector voltage generation section 130 a applies an offset voltage Vofs(T) to a power control signal Vctrl according to a device te...
83
200510054681
Device for controlling horn sound of vehicle
Being related to technical area of speaker in vehicle, the invention for controlling sound of speaker in vehicle automatically includes following parts: sensor 1 in use for detecting sou...
Input sound processor
An input sound processor compares power at each frequency component of an input sound with a reference value, and sets multiplication points indicating frequency components at which the ...
Transmitter apparatus and wireless communication apparatus A transmitter apparatus capable of performing a high-efficiency polar coordinate modulation, while maintaining a good distortion characteristic. In the case of causing a large power ampli...
89
200520069402
Motor vehicle reverse alarm An alarm of the motor vehicle reverse, includes a sine wave signal driving amplification circuit(2), an infrared signal emission circuit(4), an infrared signal receiving circuit(5), a mic...
90
200510052148
AGC circuit and gain control method, and program
The present invention relates to an AGC circuit, a AGC circuit gain control method, and a program for the AGC circuit gain control method, and may be applied to IC recorders, for example...
Load insensitive power amplifier A power amplifier for mobile phones has an RF amplifier (15) controlled based on an integral over time of a signal representing an amount of power reflected from a load on an output of th...
Programmable radio transceiver A fully integrated, programmable mixed-signal radio transceiver comprising a radio frequency integrated circuit (RFIC) which is frequency and protocol agnostic with digital inputs and out...
96
200580004622
Radio frequency low noise amplifier with automatic gain control A low noise amplifier (500) includes a first transconductance device (326) having a control electrode for receiving a first input signal, and a first current electrode; a first load devic...
97
200580004337
Amplifier and acoustic system There are provided an amplifier capable of suppressing deterioration of an audio signal and an acoustic system having the amplifier. The acoustic system includes a first amplifier (13) ha...
98
200580003606
Variable gain circuit The pesent invention provides a variable gain circuit able to realize a low distortion even at a strong input level and maintain a smooth gain change. The variable gain circuit includes a...
99
200510032900
Loudspeaker protector
A protection device of loudspeaker consists of amplifier for amplifying sound and for trans witting it to loudspeaker, level detection unit for detecting output signal level outputted by...
