The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 06, 1991
Filed:
Jan. 08, 1990
Malcolm E Kaufman, Los Angeles, CA (US);
Gerald P Selden, Blairstown, NJ (US);
Roger Booth, Chester, NJ (US);
James C Wickstead, Mendham, NJ (US);
Peter D Ellis, Needham, MA (US);
Dynamic Broadcasting Network, Inc., Santa Monica, CA (US);
Abstract
A sequence of data groups are modulated at a central location and coupled to a telephone line in response to a call-up signal. The sequence is transmitted through the telephone lines to a remote computer. The computer receives the signals, demodulates them, and couples them to a moemory. The data is stored at a particular address, and in coupling the data to the memory, the computer checks a flag at that address to determine whether the data has already been written over. When the flags indicate that the data received corresponds to data already written over, it signals the end of a transmission. The data stored in the memory can be accessed by an operator using input controls.