scispace - formally typeset
Patent

System for plural channel signal reception and readout and method of operation

John G Mohr, +1 more
Reads0
Chats0
TLDR
In this paper, a radio receiver system, and a method of operation thereof, in which two channels having the same message thereon are received, is described, and the noise levels in the respective channels are measured and the two channels are continuously sampled proportionately on the basis of sampling the quieter channel for a greater length of time than the noisier channel.
Abstract: 
The invention pertains to a radio receiver system, and to a method of operation thereof, in which two channels having the same message thereon are received. The noise levels in the respective channels are measured and the two channels are continuously sampled proportionately on the basis of sampling the quieter channel for a greater length of time than the noisier channel. The samples are combined and the resulting composite signal has a better signal to noise ratio than either channel before sampling. A proportionately combined binary representing signal with its improved signal to noise ratio is further enhanced by bit decoding using integration over a full bit period.

read more

Citations
More filters
Patent

Multi-beam tdma satellite mobile communications system

Nicholas Hart, +1 more
TL;DR: In this paper, an earth station receives a return signal via more than one satellite link from a mobile terminal using TDMA, and the earth station selects one or more of the satellite links for transmitting a forward signal on the basis of the quality of signal received via each link.
Patent

Signal quality steered diversity

Eugene J. Bruckert, +2 more
TL;DR: In this paper, a circuit and technique for directing an adaptable antenna system is presented, coupled to the output of an RF receiver configured to provide a data signal output, and evaluates the quality of the receiver data signal.
Patent

Method for the reception and detection of digital signals

Jukka Henriksson
TL;DR: In this article, a method for the reception and the detection of digital signals is described, in which at least two signals having at least approximately the same information content are received and out of each received signal (S i ) is generated by means of a phase shift one in-phase baseband signal (s iI ) and one quadrature base band signal(s iQ ) in a second summing point (3b), both sum signals (y Ik and y Qk ) are fed to a detector (4) for detection and generating two detected output signals (
Patent

Onboard reception device, and noise cancellation method for onboard reception device

Junzo Oe
TL;DR: In this article, an onboard reception device includes a first receiver, a second receiver which is tuned to a second frequency which is different from a first frequency to which the first receiver is tuned, and whose reception level is low.
Patent

Sweeping noise blanker

Douglas M. Dilley
TL;DR: In this article, a noise rejection circuit for a communications receiver is proposed, in which the inputo the receiver is continually sampled by a sweeping heterodyne oscillator to develop a difference frequency noise signal which represents the input noise over a wide frequency band.