Data processing: measuring – calibrating – or testing – Calibration or correction system – Circuit tuning
Patent
1997-05-27
1999-04-27
Wachsman, Hal Dodge
Data processing: measuring, calibrating, or testing
Calibration or correction system
Circuit tuning
702106, 702189, 348180, 348616, 348909, G01R 3500
Patent
active
058976086
ABSTRACT:
A compensating method and apparatus is provided which collectively compensates for variations in a variety of characteristics in respective circuit portions of a signal processing circuit. A correction data generator is provided for generating correction value data for correction to be made for an output signal of the signal processing circuit, in order to compensate for variations in the characteristics of the at least one circuit portion. Also, a compensator is connected to receive an output signal from the signal processing circuit as well as to receive the correction value data from the correction data generating means, for correcting the output signal in accordance with the respective correction value data corresponding to the at least one circuit portion to generate a compensated output signal.
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Instruction Manual of TC-90 TV/SAT Signal Meter, manufactured by Sadelta, printed Jul. 1989.
Copy of Correction Diagram attached to panel cover of TC-90 TV/SAT Signal Meter manufactured by Sadelta. (No date).
Instruction Manual of TV Signal Level Meter Model LFC-946A, manufactured by Leader Electronics Corp printed Jul. 1978, pp. 4, 5, and 10 (No English translation).
Instruction Manual of Spectrum Analyzer R3265/3271 manufactured by Advantest Corp., printed Nov. 30, 1990 pp. 3-7 (No English translation).
Instruction Manual of Satellite Broadcasting CN Ratio Checker KTV-635, 640 manufactured by Kyoritsu Denshi Kogyo Kabushiki Kaisha, printed Nov. 1988, p. 15 (No English translation).
Copy of Calibration Tables of Satellite Broadcasting CN Ratio Check KTV-635, provided inside the appendant casing (No English translation/No date).
Nagai Masaaki
Sanada Yoshimichi
Yokoyama Itoshi
Leader Electronics Corp.
Wachsman Hal Dodge
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