Signal diversity arrangement for mobile reception

Details Signal diversity arrangement for mobile reception Signal diversity arrangement for mobile reception

1987-12-01

1989-10-24

Griffin, Robert L.

Telecommunications

Receiver or analog modulated signal frequency converter

Plural receivers

455135, 455275, 455278, H04B 1116

Patent

active

048767433

ABSTRACT:
The invention relates to a signal diversity arrangement for a mobile reception, comprising a receiver and a diversity processor, which receives the input signals and applies a different input signal to the receiver when interference occurs. The diversity processor comprises an interference detector operating in the analog mode and a comparator, to whose first input is applied the output signal of the interference detector and to whose senond input is applied a suitably set voltage V1. The comparator shows on its output the occurence of interference by way of a binary signal when the threshold voltage V at the second input is exceeded. No less than one integrator is available having a discharging time constant, to whose input is applied a signal derived from the interference signal and whose time of integration is equal to the switching interval of one of the input signals and whose output signal is added to either the interference signal at the first comparator input such that when the interference is increased the total voltage at the first input of the comparator is increased also, or the output signal is applied to the second comparator input such that the threshold voltage is lowered when the interference rises. In the case of a series of integrators whose inputs each receive a signal derived from the interference signal of the associated input signal, the output signals of these integrators are each time applied to one of the comparator inputs and the threshold voltage V is changed each time in accordance with the interference signal during the switching interval.

REFERENCES:
patent: 4498885 (1985-02-01), Namiki
patent: 4512034 (1985-04-01), Greenstein et al.
patent: 4578819 (1986-03-01), Shimizu
patent: 4736455 (1988-04-01), Matsue et al.
patent: 4742568 (1988-05-01), Furuya
patent: 4756023 (1988-07-01), Kojima
"NTG Fachbrichte Band 72", p. 241, 3/80.

Affiliated with

Also associated with

Rating

Signal diversity arrangement for mobile reception does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Signal diversity arrangement for mobile reception, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Signal diversity arrangement for mobile reception will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1593685