Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1985-05-20
1987-02-03
Ng, Jin F.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
455166, 455186, 455194, H03J 718, H04B 110
Patent
active
046413677
ABSTRACT:
In a receiver for FM-signals, more specifically a car radio, the tuning data for those FM-transmitters which transmit the same program are stored in addressable memory locations of a first memory field. In order to be continuously tuned to the best receivable transmitter a second memory field is provided, which comprises in each of the addressable locations a status code word which is unambiguously associated with a tuning datum. These status code words are produced by a status circuit to which the intermediate-frequency signal is applied. A control circuit starts at regular intervals an up-date cycle during which the receiver is tuned to a number of transmitters whose tuning data are stored in the first memory field. In each tuning action a new status code word is determined to replace the original status code word. Thereafter the new status code words are checked against a predetermined criterion and the receiver is tuned to that transmitter whose associated status code word satisfies that criterion to the highest extent.
REFERENCES:
patent: 4253194 (1981-02-01), Van Deursen
patent: 4285066 (1981-08-01), Van Deursen
patent: 4378604 (1983-03-01), Wassink
patent: 4392247 (1983-07-01), Van Deursen
patent: 4430753 (1984-02-01), Shiratani
patent: 4509203 (1985-04-01), Yamada
Van Deursen Theodorus H. M.
Wassink Derk J. C.
Briody Thomas A.
Ng Jin F.
Oisher Jack
Streeter William J.
U.S. Philips Corporation
LandOfFree
Receiver for FM signals with transmitter status code storage does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Receiver for FM signals with transmitter status code storage, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Receiver for FM signals with transmitter status code storage will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1095837