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Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Inventor:
Kawabe; Akira
Address:
Osaka, JP
No. of patents:
6
Patents:












Patent Number Title Of Patent Date Issued
8203474 Pipeline A/D converter June 19, 2012
In each stage, a digital signal corresponding to a portion of bits is generated from an input analog signal, an analog reference signal is generated by a DA conversion portion (7, 8) based on the digital signal, and a remainder operation on the input analog signal is performed by a r
8154434 Pipelined A/D converter April 10, 2012
Multiple stages sequentially convert respective input analog signals to partial digital data. Each stage includes: a partial A/D converter; a partial D/A converter; an adder that adds/subtracts the analog signal from the previous stage and an output from the partial D/A converter; and
7590041 Playback signal processing device September 15, 2009
In a playback signal processing device for extracting, from an analog playback signal, playback data and a clock synchronized with the playback data, a digital equalizer 2 is disposed outside a clock extraction loop formed by an interpolator 3, a timing recovery circuit 4, and a control
7474244 Current addition type digital analog converter January 6, 2009
A digital analog converter includes a current conversion section and a voltage conversion section. The current conversion section has a first output terminal and a second output terminal. The first output terminal outputs a first current and a second output terminal outputs a second
6895348 Information playback apparatus with an unusual waveform circuit May 17, 2005
An unusual waveform detection circuit is a digital-type unusual waveform detection circuit that arbitrarily sets a threshold used for determining an unusual waveform and produces an unusual waveform determination signal by comparing an input signal with the threshold. In producing the un
6608524 Automatic gain control circuit August 19, 2003
In a state where a PLL circuit is not locked, a gain control signal according to the difference between a peak value of a reproduced signal and the upper or lower limit value of the dynamic range of an A/D converter is given to a variable gain amplifier. In a state where the PLL circ










 
 
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