Method and arrangement for the analog/digital conversion of a pi

Details Method and arrangement for the analog/digital conversion of a pi Method and arrangement for the analog/digital conversion of a pi

1998-03-17

2000-08-01

Hsia, Sherrie

Television

Image signal processing circuitry specific to television

A/d converters

348678, 348689, H04N 518, H04N 552

Patent

active

060974435

ABSTRACT:
A method for the analog/digital conversion and an arrangement for the analog-to-digital conversion of an analog signal, particularly a picture signal, into a digital signal by at least two analog-to-digital converters which are clocked by at least two phase-shifted clock signals and whose output signals are combined to a digital picture signal by a multiplexer is disclosed. In order to achieve an individual adaptation to different characteristics of the analog-to-digital converters, each analog-to-digital converter is preceded by an automatic gain control circuit and a clamping stage, which clamps the picture signal at a given amplitude value, the analog signal being applied to the automatic gain control circuit and the clamping stage.

REFERENCES:
patent: 4745461 (1988-05-01), Shirai
patent: 5175615 (1992-12-01), Ohara
patent: 5345279 (1994-09-01), Takaiwa
patent: 5448300 (1995-09-01), Yamada

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