Radio interference detection device for use in a multi-channel a

Details Radio interference detection device for use in a multi-channel a Radio interference detection device for use in a multi-channel a

1983-03-04

1985-02-05

Ng, Jin F.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency or phase modulation

455295, 455303, H04B 116, H04B 110

Patent

active

044981953

ABSTRACT:
A radio interference detection device for use in a multi-channel access angle-modulation radio system. A detecting system detects a received signal prior to angle demodulation and produces an AM component of the received signal which is then rectified. A determining section then determines the level of the rectified signal for use in detecting interference in accordance with a determination result. The determining section includes an angle demodulator for angle-demodulating the received signal, a first comparator for comparing the angle-demodulated signal and the rectified signal, a second comparator for producing the detection signal when the rectified signal exceeds a predetermined level and a gate for passing the output signal from the second comparator only when the angle-demodulated signal is smaller than the rectified signal.

REFERENCES:
patent: 3696301 (1972-10-01), Hoshi
patent: 3881155 (1975-04-01), Saikaishi
patent: 4166251 (1979-08-01), Ishigaki et al.
patent: 4211978 (1980-07-01), Takahashi

Affiliated with

Also associated with

Rating

Radio interference detection device for use in a multi-channel a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radio interference detection device for use in a multi-channel a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio interference detection device for use in a multi-channel a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2085823