EP 0290829 B1 19920115 - ARRANGEMENT FOR DECODING SIGNALS
Title (en)
ARRANGEMENT FOR DECODING SIGNALS
Publication
Application
Priority
DE 3716285 A 19870515
Abstract (en)
[origin: EP0290829A2] In an arrangement for decoding signals which are received in addition to other signals as a modulation of radio waves and whose respective frequency constitutes a specific item of information, a time basis signal of constant frequency is generated from which a reference signal with a controllable frequency position and phase position is derived with the aid of a microprocessor. An output signal is derived if there is a coincidence of the reference signal with the received signal with respect to phase and frequency. The time basis signal can preferably be derived from the instruction frequency of the microprocessor by running through program loops of identical length at least in the timing means. A register which is incremented by changeable values serves for deriving the reference frequency. In the case of two superimposed signals, the one is evaluated with respect to frequency and the other with respect to the pulse duty factor of a binary signal. <IMAGE>
IPC 1-7
IPC 8 full level
G08G 1/09 (2006.01)
CPC (source: EP)
G08G 1/094 (2013.01)
Designated contracting state (EPC)
AT CH DE FR LI NL
DOCDB simple family (publication)
EP 0290829 A2 19881117; EP 0290829 A3 19890329; EP 0290829 B1 19920115; AT E71757 T1 19920215; DE 3716285 A1 19881124; DE 3867697 D1 19920227
DOCDB simple family (application)
EP 88106346 A 19880421; AT 88106346 T 19880421; DE 3716285 A 19870515; DE 3867697 T 19880421