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:
Feb. 13, 2018
Filed:
Aug. 11, 2016
Applicant:
Freescale Semiconductor, Inc., Austin, TX (US);
Inventors:
Zhiling Sui, Suzhou, CN;
Zhijun Chen, Suzhou, CN;
Zhihong Cheng, Suzhou, CN;
SHixiang Nie, Suzhou, CN;
Assignee:
NXP USA, INC., Austin, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04L 27/148 (2006.01); H04B 5/00 (2006.01);
U.S. Cl.
CPC ...
H04B 5/0075 (2013.01); H04B 5/0031 (2013.01); H04B 5/0037 (2013.01); H04L 27/148 (2013.01);
Abstract
A frequency shift keying (FSK) demodulation component having of a sampler that receives an FSK modulated signal, samples the received FSK modulated signal, and outputs the sampled signal. The FSK demodulation component further includes a low pass filter that filters the sampled signal, and a frequency shift detector that detects shifts in frequency of the low pass filtered sampled signal. The FSK demodulation component then outputs an indication of the detection of shifts in frequency of the low pass filtered sampled signal.