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:
Apr. 26, 2022
Filed:
Jun. 08, 2018
Applicant:
Intel Corporation, Santa Clara, CA (US);
Inventors:
Xintian E. Lin, Mountain View, CA (US);
Matias Javier Almada, Columbus, GA (US);
Qinghua Li, San Ramon, CA (US);
Assignee:
Apple Inc., Cupertino, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
H04B 11/00 (2006.01); H04L 1/00 (2006.01);
U.S. Cl.
CPC ...
H04B 11/00 (2013.01); H04L 1/0041 (2013.01); H04L 1/0045 (2013.01); H04L 1/0061 (2013.01); H04L 1/0071 (2013.01);
Abstract
Methods and apparatus are described for ultrasound transmission. A bit packet is created from received data. A cyclic redundancy check (CRC) is added to the bit packet based on the input data. The bit packet is encoded with forward error correction. The encoded bit packet is block interleaved to create a bit stream. The bit stream is converted into symbols. Each symbol is mapped to a dual tone multi frequency (DTMF). A first audio buffer based upon the DTMF is created. The audio buffer is provided for output.