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. 09, 1979
Filed:
Jul. 12, 1977
Kurt Hoffmann, Taufkirchen, DE;
Manfred Mauthe, Munich, DE;
Siemens Aktiengesellschaft, Berlin & Munich, DE;
Abstract
A method and apparatus is disclosed for a fast switching digital differential amplifier system useful in regenerating information signals in charge coupled devices. The amplifier system has a first capacitance at an input point which is charged and discharged in accordance with a binary '0' or binary '1' at the input. A second capacitance and an output capacitance is provided with a predetermined charge thereon. In the event of a binary '1', the predetermined charge on the second and output capacitance is retained while the first capacitance is discharged. In the event of a binary '0', the second and output capacitances are discharged via a current sink. A flip-flop is connected to the output capacitance for accelerating the discharge of the same. Switching transistors are additionally provided for activating the flip-flop to achieve the desired fast-switching.