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1. WO1985000482 - SIGNAL QUALITY STEERED DIVERSITY

Publication Number WO/1985/000482
Publication Date 31.01.1985
International Application No. PCT/US1984/000999
International Filing Date 27.06.1984
IPC
H04B 7/08 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna systems, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
08at the receiving station
H04L 1/06 2006.01
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
02by diversity reception
06using space diversity
CPC
H04B 7/0814
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
BTRANSMISSION
7Radio transmission systems, i.e. using radiation field
02Diversity systems; Multi-antenna system, i.e. transmission or reception using multiple antennas
04using two or more spaced independent antennas
08at the receiving station
0802using antenna selection
0805with single receiver and antenna switching
0814based on current reception conditions, e.g. switching to different antenna when signal level is below threshold
H04L 1/06
HELECTRICITY
04ELECTRIC COMMUNICATION TECHNIQUE
LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
1Arrangements for detecting or preventing errors in the information received
02by diversity reception
06using space diversity
Applicants
  • MOTOROLA, INC. [US]/[US]
Inventors
  • BRUCKERT, Eugene, Joseph
  • BUTCHER, James, Steven
  • KNEISEL, Thomas, Frederick
Agents
  • GILLMAN, James, W. @
Priority Data
511,43106.07.1983US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SIGNAL QUALITY STEERED DIVERSITY
(FR) DIVERSITE COMMANDEE PAR LA QUALITE DU SIGNAL
Abstract
(EN)
A circuit and technique for directing an adaptable antenna system. The invention is coupled to the output of an RF receiver (28) configured to provide a data signal output, and evaluates the quality of the receiver data signal. The invention switches antennas (13, 14) when the signal quality deteriorates below a predetermined level.
(FR)
Circuit et technique permettant d'orienter un système d'antennes adaptables. L'invention est couplée à la sortie d'un récepteur HF (28) présentant une configuration lui permettant de produire un signal de sortie de données, et évalue la qualité du signal de données du récepteur. L'invention commute les antennes (13, 14) lorsque la qualité du signal se détériore en tombant en dessous d'un niveau prédéterminé.
Also published as
Latest bibliographic data on file with the International Bureau