Transmission control circuit for use in TDMA communication devic

Details Transmission control circuit for use in TDMA communication devic Transmission control circuit for use in TDMA communication devic

1993-11-29

1996-02-20

Eisenzopf, Reinhard J.

Telecommunications

Transmitter

Power control, power supply, or bias voltage supply

455126, H04B 104

Patent

active

054937051

ABSTRACT:
A transmission control circuit for use in a TDMA communication device controls the rise and fall characteristics of driving voltages applied to high-frequency amplifier circuits in such a way that the generation of unnecessary waves at the time of transmission can be restrained to a minimum, wherein a driving voltage ON/OFF circuit B1 outputs first and second driving voltages S1 and S2 having different rise and fall time constants, the first driving voltage S1 being supplied to a first high-frequency amplifier circuit A1, and the second driving voltage S2 to a second high-frequency amplifier circuit. The requisite rise time for the driving voltage S1, which is supplied to the first high-frequency amplifier circuit A1, is longer than the requisite rise time for the ON/OFF switching signal S2, supplied to the second high-frequency amplifier circuit A2, and the requisite fall time for the driving voltage S1 is shorter than the requisite fall time for the second ON/OFF switching signal S2, which is supplied to the second high-frequency amplifier circuit A2.

REFERENCES:
patent: 4544924 (1985-10-01), French
patent: 5101176 (1992-03-01), Norimatsu
patent: 5193223 (1993-03-01), Walczak et al.
patent: 5276917 (1994-01-01), Vanhanen et al.
Sedra/Smith, Microelectronic Circuits, 1989, 202.

Affiliated with

Also associated with

Rating

Transmission control circuit for use in TDMA communication devic 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 control circuit for use in TDMA communication devic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Transmission control circuit for use in TDMA communication devic will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1363418