Method of encoding market data and transmitting by radio to a pl

Details Method of encoding market data and transmitting by radio to a pl Method of encoding market data and transmitting by radio to a pl

1987-09-29

1991-09-03

Weldon, Ulysses

Communications: electrical

Continuously variable indicating

With meter reading

34082527, H04Q 300

Patent

active

050458485

ABSTRACT:
A method of encoding stock market data and transmitting such data via radio to a plurality of one-way receivers via an SCA channel on a commercial FM station transmits both a cyclical repetitive loop of all the stocks listed on a particular exchange including parameters of their open, high, low and last prices. During actual trading hours, the current trade values are also inserted on a real-time basis in the loop. The receiver is automatically and immediately updated by means of its storage capacity. To provide a short cycle of operation, data is compressed by dividing the stocks into groups determined by a binary offset from the last price compared to open, high and low and also by the maximum last sale price.

REFERENCES:
patent: 3387268 (1968-06-01), Epstein
patent: 3611294 (1971-10-01), O'Neill
patent: 3716835 (1973-02-01), Weinberg et al.
patent: 4473824 (1984-09-01), Claytor

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