Clock generation circuit and semiconductor device provided...

Details Clock generation circuit and semiconductor device provided... Clock generation circuit and semiconductor device provided...

2008-07-29

2008-07-29

Mis, David (Department: 2817)

Telecommunications

Transmitter and receiver at same station

With frequency stabilization

C455S076000, C331S00100A, C331S049000

Reexamination Certificate

active

07406297

ABSTRACT:
It is an object of the present invention to solve a problem that malfunction of communication is generated by varying a frequency of a clock due to noise from outside in a case where there is no supplied signal in a circuit which performs negative feedback control so that the supplied signal and the feedback signal can maintain a fixed phase relationship between the signals. The present invention provides a configuration including a PLL circuit and an oscillator circuit, where a switch for switching an output between a signal from the PLL circuit and a signal from the oscillator circuit to the signal output portion is provided to switch from a connection to the PLL circuit to a connection to the oscillator circuit in a case where there is no received signal.

REFERENCES:
patent: 5133064 (1992-07-01), Hotta et al.
patent: 5359727 (1994-10-01), Kurita et al.
patent: 5506982 (1996-04-01), Hotta et al.
patent: 5568512 (1996-10-01), Rotzoll
patent: 5623234 (1997-04-01), Shaik et al.
patent: 5956378 (1999-09-01), Soda
patent: 5994933 (1999-11-01), Yamanaka et al.
patent: 6130602 (2000-10-01), O'Toole et al.
patent: 6342818 (2002-01-01), Segawa et al.
patent: 6639509 (2003-10-01), Martinez
patent: 6894624 (2005-05-01), Kim et al.
patent: 2005/0083902 (2005-04-01), Hashimoto
patent: 2001-251186 (2001-09-01), None

Affiliated with

Also associated with

Rating

Clock generation circuit and semiconductor device provided... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Clock generation circuit and semiconductor device provided..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Clock generation circuit and semiconductor device provided... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2815501