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:
Jun. 08, 1993
Filed:
Jan. 04, 1991
Christopher H Patterson, Santa Clara, CA (US);
Gary L Miller, Santa Clara, CA (US);
Jeffrey A Berkman, Saratoga, CA (US);
Catalyst Semiconductor, Santa Clara, CA (US);
Abstract
Power stealing circuit receives data signals on its signal input terminal and diverts some power from the signal input terminal to its power output terminal to power another circuit. When the voltage on the signal input terminal exceeds the voltage on the power output terminal, positive supply power is 'stolen' from the signal input terminal to the power output terminal. When the signal input terminal is below the power output terminal, the two terminals are disconnected. A similar circuit 'steals' negative supply power. In some embodiments, a comparator compares the voltages on the two terminals and regulates the power stealing operation.