5,151,638 A 9, 1992 Beckerman 2001 0035603 A1 11/2001 Graves et al. 5,174,562 A 12,
1992 Mizunaga et al. 2003/0094748 A1 5/2003 Chujo et al. 5,266,851 A 11/1993 Nukui …

(57) A circuit comprises a first phase detector, a second phase detector, and combinational
logic. The first phase detector is for detecting a phase difference between a rising edge of a …

A quarter-rate phase detector can include: four latches controllable to latch, at different times
according to quadrature clock signals, respectively, data received by the phase detector so …

Circuits and methods for simplifying clock and data recovery circuits by including a data
regeneration circuit as part of a phase detector circuit. Delay elements are added such that …

Testing and measuring certain parametricS electronic products is a crucial part of the
manufacturing process. This is particularly the case with today's complex products, in which …

Appl. No.: 09/112,466 Internal integrated circuit interconnect communication cir (22) Filed:
Jul. 9, 1998 cuitry dual edge triggered latching circuits to transmit two 9 data Signals over a …

A method for determining a digital phase in a signal comprises sampling a reference signal
for a low going edge. If the low going edge is not detected the reference signal is sampled …

Described are methods and circuits for margin testing digital receivers. These methods and
circuits prevent margins from collapsing in response to erroneously received data, and can …

0001 1. Field of the Invention 0002 The present invention is related to a phase com parator
operable in full bit rates and also in half bit rates. 0003 2. Description of the Related Art …

US6868135B1 - Method and apparatus for correcting for a phase shift between a transmitter
and a receiver - Google Patents US6868135B1 - Method and apparatus for correcting for a …