Automatic monitor for programs broadcast

Details Automatic monitor for programs broadcast Automatic monitor for programs broadcast

1975-11-28

1977-05-24

Safourek, Benedict V.

325 54, H04J 900

Patent

active

040258513

ABSTRACT:
A system for automatically monitoring the programs broadcast by network affiliated broadcasting stations includes a plurality of remote monitoring sites and a central office for periodically interrogating the remote monitoring sites. Each remote monitoring site contains apparatus for monitoring time varying program identifying data, and for storing the data in a change format when the time varying data changes in an unexpected manner. An elapsed time clock in each remote monitoring unit generates a record of the elapsed time between the unexpected changes.
Each remote unit includes a minicomputer having a read-only memory and a random-access memory. The data in the read-only memory serves to establish communications with the central office and permits the central office to access the random-access memory. After the random-access memory has been accessed, it may be reprogrammed to alter the operation of the remote monitoring unit to accommodate different data formats or different information.

REFERENCES:
patent: 3733430 (1973-05-01), Thompson et al.
patent: 3845391 (1974-10-01), Crosby
patent: 3849729 (1974-11-01), Baggem
patent: 3906450 (1975-09-01), Prado, Jr.
patent: 3947624 (1976-03-01), Miyake

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