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:
Dec. 08, 2009
Filed:
Apr. 07, 2006
Yoshiaki Shinohara, Yokohama, JP;
Yoshiaki Shinohara, Yokohama, JP;
Digian Technology, Inc., Yokohama, JP;
Abstract
The present invention provides a cyclic AD converter that reduces power consumption by reducing active circuits such as an X2 amplifier or the like and is particularly suitable to implement in an integrated circuit and also an integrator to be used therefor. The cyclic AD converter uses an integratorcomprising an operational amplifier, a first integration capacitor Cconnected between the input and output terminals of the operational amplifier, and a second integration capacitor Cto be connected selectively between the reference potential source and the input/output terminals of the operational amplifierby way of switches Sand S. The integratoroperates to sample/hold an analog input signal and also obtain a signal equal to the double of a reference signal from a comparator. As a result, an X2 amplifier required in the conventional converter is replaced by integration capacitors and switches, thereby reducing power consumption and easily implementing into a semiconductor integrated circuit.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile