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Last Updated: April 24, 2024

Details for Patent: 9,577,864


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Summary for Patent: 9,577,864
Title:Method and apparatus for use with received electromagnetic signal at a frequency not known exactly in advance
Abstract: In a software receiver, a received electromagnetic signal is sampled in "slices", each having a duration of some multiple of a reference frequency. The samples of each slice are correlated with values in a pair of reference signals, such as sine and cosine, at the reference frequency. This yields a two-tuple for each slice, which two-tuples may be stored. The stored two-tuples can be simply added to arrive at a correlation value of narrower bandwidth than that of any slice taken alone. The stored two-tuples can be taken in sequence, each rotated by some predetermined angle relative to its predecessor in sequence, and the rotated two-tuples summed to arrive at a correlation value with respect to a frequency that is offset from the reference frequency to an extent that relates to the predetermined angle. In this way, the receiver is able to proceed despite the transmitted frequency not being known exactly in advance and does not require prodigious storage or computational resources.
Inventor(s): Fleming; Robert Alan (Nicasio, CA), Kushner; Cherie Elaine (Nicasio, CA), McAllister; William (Saratoga, CA), Zdeblick; Mark (Portola Valley, CA)
Assignee: Proteus Digital Health, Inc. (Redwood City, CA)
Application Number:14/917,834
Patent Claim Types:
see list of patent claims
Use; Formulation; Device;

Drugs Protected by US Patent 9,577,864

Applicant Tradename Generic Name Dosage NDA Approval Date TE Type RLD RS Patent No. Patent Expiration Product Substance Delist Req. Patented / Exclusive Use Submissiondate
>Applicant >Tradename >Generic Name >Dosage >NDA >Approval Date >TE >Type >RLD >RS >Patent No. >Patent Expiration >Product >Substance >Delist Req. >Patented / Exclusive Use >Submissiondate

Foreign Priority and PCT Information for Patent: 9,577,864

PCT Information
PCT FiledOctober 03, 2013PCT Application Number:PCT/IB2013/059084
PCT Publication Date:April 02, 2015PCT Publication Number: WO2015/044722

International Family Members for US Patent 9,577,864

Country Patent Number Estimated Expiration Supplementary Protection Certificate SPC Country SPC Expiration
Japan 2016537924 ⤷  Try a Trial
World Intellectual Property Organization (WIPO) 2015044722 ⤷  Try a Trial
>Country >Patent Number >Estimated Expiration >Supplementary Protection Certificate >SPC Country >SPC Expiration

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