Method of gray scale generation for displays using a binary weighted clock
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United States of America Patent
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N/A
Issued Date -
Dec 6, 2001
app pub date -
Nov 29, 2000
filing date -
May 16, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A programmable pulse width modulation generator circuit and method for generating a pulse width modulated signal with a variable duty cycle. The generator circuit includes a data loading circuit for receiving a data word representing the desired duty cycle of the pulse width modulated signal to be generated. The data word comprises a plurality of data bits, each bit having at least one of a selected or unselected state. The generator circuit also includes a generating circuit coupled to data loading circuit for receiving a plurality of periodic pulse width modulated signals, and for generating a pulse width modulated signal by combining each constituent pulse width modulated signals that correspond to a data bit in the data word that indicates the selected state.
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