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:
Jan. 01, 1980
Filed:
Jan. 28, 1977
Luigi C Gallo, Redwood City, CA (US);
Ampex Corporation, Redwood City, CA (US);
Abstract
Apparatus is disclosed for transmitting through a transmission channel a digital data stream of the type where the position of a level transition within a bit cell determines the information content of the bit cell. As the data stream is transmitted through the transmission channel, degradation of the transitions can occur due to differring response characteristics with respect to level transitions in opposite directions. A pulse for each level transition of the data stream is generated, the pulses converted to a pair of complementary level pulses for transmission, a single level pulse is produced from the transmitted complementary level pulses when the instantaneous level of both said complementary pulses are the same during a transition and thereafter an output signal is provided having a level transition for each pulse.