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. 25, 2022
Filed:
Aug. 30, 2019
Digital filter with programmable impulse response for direct amplitude modulation at radio frequency
Apple Inc., Cupertino, CA (US);
Tao Mai, Santa Clara, CA (US);
Robert G. Lorenz, Menlo Park, CA (US);
Joachim S. Hammerschmidt, Mountain View, CA (US);
Utku Seckin, Santa Clara, CA (US);
Apple Inc., Cupertino, CA (US);
Abstract
A digital filter according to the disclosure includes a processing circuit having a memory and a number of parallel processing circuits. The parallel processing circuits perform a convolution operations based on input data and function data that is accessed from the memory. The filter further includes a serializer for serializing data that is received from the processing circuits. A clock generator circuit provides a first clock signal to the processing circuit and a second clock signal to the serializer. The frequency of the second clock signal is greater than that of the first clock signal.