Priority encoder

Details Priority encoder Priority encoder

2009-03-26

2010-11-30

JeanPierre, Peguy (Department: 2819)

Coded data generation or conversion

Analog to or from digital conversion

Analog to digital conversion

C341S155000

Reexamination Certificate

active

07843374

ABSTRACT:
A priority encoder encodes an (N+1)-bit thermometer code, where N indicates a natural number. A plurality of selectors are arranged in a matrix of M rows and (N+1) columns, where M indicates a natural number, and select one of signals at first and second input terminals (1,0) in accordance with the value of a signal input to the control terminal. An output signal from the selector in the i-th row and (j−1)th column is input to the first input terminal of the selector in the i-th row and j-th column (1≦i≦M, 2≦j≦N+1), a predetermined value of 1 or 0 is input to the second input terminal of the selector in the i-th row and j-th column, and the j-th significant bit of the thermometer code is input to the control terminal of the selector in the i-th row and j-th column.

REFERENCES:
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patent: 7477222 (2009-01-01), Koyama et al.
patent: 2002/0032715 (2002-03-01), Utsumi
patent: 10-247842 (1998-09-01), None
patent: 2002-139553 (2002-05-01), None
patent: 2005-223912 (2005-08-01), None
Unknown, “8-Bit Priority Encoder”, MC14532B, pp. 1-7, ON Semiconductor, Apr. 2006, Rev. 6, Semiconductor Components Industries, LLC, <http://www.onsemi.com/pub—link/Collateral/MC14532B-D.PDF>.

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