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:
Oct. 01, 2002
Filed:
Jul. 20, 1999
Eran Gureshnik, Petah Tikva, IL;
Daniel Yellin, Ra'anana, IL;
Shlomo Yakobovich, Rosh Ha'ayin, IL;
Arie Stalberg, Yehud, IL;
D.S.P.C. Technologies Ltd., Petach Tikva, IL;
Abstract
A switchable low pass filter includes a first switch connected to a first resistive element, a second switch connected to a second resistive element, and a capacitive element connected to the first and second resistive elements. The switchable low pass filter also includes a controller connected to the first switch and the second switch, the controller operative to open and close at least one of the first switch and the second switch. A method for producing a pulse density modulated signal whose pulse timing is jittered includes the following steps; adding a substantially random number and a multi-bit number to a value stored in a flip flop, thereby producing a sum; if the sum is less than an upper limit, storing the sum in the flip flop, thereby replacing the value; if the sum is not less than the upper limit, producing a pulse, subtracting the upper limit from the sum, thereby producing a result, and storing the result in a flip flop; and repeating the steps.