Analog-to digital converter and analog-to digital conversion...

Details Analog-to digital converter and analog-to digital conversion... Analog-to digital converter and analog-to digital conversion...

2007-10-23

2007-10-23

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S120000

Reexamination Certificate

active

11354245

ABSTRACT:
An analog-to-digital conversion apparatus which has a variable resolution and allows a reduction in power consumption. This apparatus comprises an analog-to-digital converter (ADC) of parallel type, a controller, and an interpolation circuit. The analog-to-digital converter has a plurality of comparators connected in parallel, each for comparing potentials of an analog input signal and a reference signal. The controller generates a control signal for controlling the resolution of the analog-to-digital converter. Specifically, the controller controls the number of comparators (CMP) to operate by means of the control signal, thereby determining the resolution. The interpolation circuit interpolates the output data of the comparators that are disabled depending on the resolution. The controller avoids simultaneous operation of two adjoining comparators when the analog-to-digital converter is operated at a resolution lower than its maximum resolution.

REFERENCES:
patent: 4417233 (1983-11-01), Inoue et al.
patent: 4686508 (1987-08-01), van de Grift et al.
patent: 5781132 (1998-07-01), Lewyn
patent: 6002356 (1999-12-01), Cooper
patent: 6081219 (2000-06-01), Prasanna
patent: 6734817 (2004-05-01), Naka et al.
patent: 6880262 (2005-04-01), Jensen
patent: 7102559 (2006-09-01), Van Tuijl
patent: 2003-101411 (2003-04-01), None
patent: 2003-198368 (2003-07-01), None

Affiliated with

Also associated with

Rating

Analog-to digital converter and analog-to digital conversion... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Analog-to digital converter and analog-to digital conversion..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Analog-to digital converter and analog-to digital conversion... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3862969