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, 2016
Filed:
Mar. 23, 2012
Robert Adams, Acton, MA (US);
David Hossack, Somerville, MA (US);
Benjamin Vigoda, Winchester, MA (US);
Eric Nestler, Cambridge, MA (US);
Mira Wilczek, Cambridge, MA (US);
Robert Adams, Acton, MA (US);
David Hossack, Somerville, MA (US);
Benjamin Vigoda, Winchester, MA (US);
Eric Nestler, Cambridge, MA (US);
Mira Wilczek, Cambridge, MA (US);
Analog Devices, Inc., Norwood, MA (US);
Abstract
Microphone stages in a microphone array may be coupled together in a daisy chain. Each stage may include a microphone, an analog to digital converter, a decimation unit, a receiver, an adder, and a transmitter. The converter may convert analog audio microphone signals into digital codes that may be decimated. The adder may add decimated digital codes in each stage to a cumulative sum of decimated digital codes from prior stages. This new sum may be transmitted to the next microphone stage, where the adder may add the decimated digital codes from that stage to the cumulative sum. A serial interface may be used to connect the transmitters and receivers of each of the stages. The serial interface may be used to transmit the cumulative sum of decimated digital codes between the stages. The serial interface may also be used to transmit configuration data between the stages.