Data converters with ternary pulse width modulation output...

Details Data converters with ternary pulse width modulation output... Data converters with ternary pulse width modulation output...

2005-04-26

2005-04-26

Tokar, Michael (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Digital to analog conversion

C341S159000, C341S145000

Reexamination Certificate

active

06885330

ABSTRACT:
A pulse width modulator includes at least one input for receiving an input signal and pulse width modulation circuitry for generating a pulse width modulated stream and another pulse width modulated stream. The pulse width modulated stream and the another pulse width modulated stream are nominally out of phase and together represent the received input signal. A summer sums the pulse width modulated stream and the another pulse width modulated stream to generate an analog output signal.

REFERENCES:
patent: 5008675 (1991-04-01), Toyomaki
patent: 5990735 (1999-11-01), Sigmon et al.
patent: 6373334 (2002-04-01), Melanson
patent: 6529074 (2003-03-01), Melanson et al.
patent: 6593806 (2003-07-01), Melanson
patent: 6693571 (2004-02-01), Melanson et al.

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