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:
Jan. 07, 2020
Filed:
Dec. 19, 2017
Cirrus Logic International Semiconductor Ltd., Edinburgh, GB;
Robert David Rand, Scottish Borders, GB;
Nigel Burgess, Edinburgh, GB;
Cirrus Logic, Inc., Austin, TX (US);
Abstract
This application relates to transfer of digital audio data between a host device () and an accessory apparatus () that may be connected to the host device via a suitable connector (), such as a USB connector. A path selector () is operable to establish either a first digital data path () or a second digital data path () for transfer of digital data. The first digital data path () includes a first data bus host () and a general purpose digital data interface () suitable for bulk data transfer between the first data bus host and the applications processor () of the device. This may be a default USB path. The second digital data path () includes a second data bus host () and at least one pair of second path data interfaces (). The second data bus host () does not form part of the applications processor and each of said second path data interfaces comprises a digital audio interface suitable for streaming of audio data. The path selector selectively establishes the first data path for bulk digital data transfer or the second data path for streaming of audio data where latency is important.