Power control of a direct sequence CDMA radio

Details Power control of a direct sequence CDMA radio Power control of a direct sequence CDMA radio

1991-05-28

1992-04-21

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

455127, H04J 1300, H04B 7216

Patent

active

051074877

ABSTRACT:
The power control apparatus of the present invention is comprised of a local oscillator signal path coupled to a mixer (106) through a variable attenuator (107) and an IF signal path coupled to the mixer (106) through two variable attenuators (108 and 109) coupled in series. The IF signal path attenuators (108 and 109) are controlled by digital control circuitry (111) while the local oscillator path attenuator (107) is controlled by the control circuitry through a level shifter (110). The power level of the signal generated by the mixing of these two signals is less than the conducted output of the radiotelephone's power amplifier.

REFERENCES:
patent: 3332017 (1967-09-01), Dennis, Jr.
patent: 3390335 (1968-06-01), Miyagi
patent: 3732496 (1973-05-01), Boyer
patent: 4811421 (1989-03-01), Havel et al.
patent: 5003619 (1991-03-01), Morris et al.

Affiliated with

Also associated with

Rating

Power control of a direct sequence CDMA radio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power control of a direct sequence CDMA radio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power control of a direct sequence CDMA radio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1593077