Frequency modulator apparatus of phase selection type, and...

Telecommunications – Carrier wave repeater or relay system – Frequency or phase modulation

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C455S042000, C455S205000, C332S117000, C375S371000

Reexamination Certificate

active

07043202

ABSTRACT:
A phase-selective type frequency modulator capable of easing the restriction on a phase range of a modulated clock signal. The phase-selective type frequency modulator includes a multiphase clock signal generating circuit101for generating N-phase clock signals; a control circuit104for sequentially activating one of first group of clock selection signals indicating a clock signal to be selected from the N-phase clock signals; an edge appearance time adjustment circuit103for adjusting a rising edge appearance time and/or a trailing edge appearance time of the first group of clock selection signals outputted from the control circuit104to output second group of clock selection signals; and a modulated clock signal generating circuit102for selecting one clock signal from the N-phase clock signals in accordance with an activated state of the second group of clock selection signals outputted from the edge appearance time adjustment circuit103to output a modulated clock signal MCK.

REFERENCES:
patent: 3835404 (1974-09-01), Nakamura et al.
patent: 4023103 (1977-05-01), Malm
patent: 4229825 (1980-10-01), Guidoux
patent: 6876710 (2005-04-01), Pitzer et al.
patent: 2004/0196939 (2004-10-01), Co
patent: 2005/0135505 (2005-06-01), Ebuchi et al.
patent: 4-190409 (1992-07-01), None
patent: 5-152908 (1993-06-01), None
patent: 7-122094 (1995-05-01), None
patent: 2001-148690 (2001-05-01), None
patent: 2001-331236 (2001-11-01), None
patent: 2002-366250 (2002-12-01), None
patent: WO 00/45246 (2000-08-01), None

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Frequency modulator apparatus of phase selection type, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Frequency modulator apparatus of phase selection type, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Frequency modulator apparatus of phase selection type, and... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-3631450

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.