Transmission circuit

Details Transmission circuit Transmission circuit

2006-07-04

2006-07-04

Ghebretinsae, Temesghen (Department: 2637)

Pulse or digital communications

Spread spectrum

C375S146000, C370S342000

Reexamination Certificate

active

07072379

ABSTRACT:
This transmission circuit is used in, for example, a base station in CDMA mobile communication. The transmission circuit has a first delay circuit section which gives a delay to an input signal (spread signal) with a predetermined resolution, and a second delay circuit section gives a delay to the output signal of the first delay circuit section with a higher resolution than the predetermined resolution. A control section computes a first delay amount which is a maximum value that does not exceed a predetermined delay amount and can be given by a delay of the predetermined resolution, instructs the first delay circuit section the first delay amount, computes a second delay amount which is the first delay amount subtracted from the predetermined delay amount and instructs the second delay circuit section the second delay amount. By adjusting a transmission timing this way, it is possible to adjust the transmission timing among a plurality of base stations while reducing the circuit scale.

REFERENCES:
patent: 4193073 (1980-03-01), Kohnen
patent: 4805195 (1989-02-01), Keegan
patent: 5568472 (1996-10-01), Umeda et al.
patent: 5619504 (1997-04-01), Van Grinsven et al.
patent: 5689525 (1997-11-01), Takeishi et al.
patent: 5914947 (1999-06-01), Saito
patent: 5943331 (1999-08-01), Lavean
patent: 5960028 (1999-09-01), Okamoto et al.
patent: 6101197 (2000-08-01), Keeth et al.
patent: 6307877 (2001-10-01), Philips et al.
patent: 6346837 (2002-02-01), Shibayama
patent: 6349109 (2002-02-01), Lattard et al.
patent: 4-196813 (1992-07-01), None
patent: 10-117165 (1998-05-01), None
patent: 10-261942 (1998-09-01), None
patent: 10-271059 (1998-10-01), None
patent: 11-145917 (1999-05-01), None

Affiliated with

Also associated with

Rating

Transmission circuit does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3586157