GB201109009D0 - Digital signal routing circuit - Google Patents

Digital signal routing circuit

Info

Publication number
GB201109009D0
GB201109009D0 GB201109009A GB201109009A GB201109009D0 GB 201109009 D0 GB201109009 D0 GB 201109009D0 GB 201109009 A GB201109009 A GB 201109009A GB 201109009 A GB201109009 A GB 201109009A GB 201109009 D0 GB201109009 D0 GB 201109009D0
Authority
GB
United Kingdom
Prior art keywords
data
multiply
digital
sample clock
digital signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
GB201109009A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cirrus Logic International UK Ltd
Original Assignee
Wolfson Microelectronics PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Wolfson Microelectronics PLC filed Critical Wolfson Microelectronics PLC
Priority to GB201109009A priority Critical patent/GB201109009D0/en
Publication of GB201109009D0 publication Critical patent/GB201109009D0/en
Priority to GB201209258A priority patent/GB2491263B/en
Priority to GB201209259A priority patent/GB2491264B/en
Ceased legal-status Critical Current

Links

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Time-Division Multiplex Systems (AREA)
  • Circuit For Audible Band Transducer (AREA)

Abstract

An integrated circuit 39 is used for digital signal mixing of audio data samples from analogue and digital inputs 56, 62 to generate outputs 70, 74. The integrated circuit also includes a plurality of digital signal processing (DSP) blocks, which can act as data sources and data destinations. The digital mixing core 50 includes a multiply-accumulate block which takes data from one or more data source and, after any required scaling, generates output data for a data destination. Multiple signal paths can be defined by configuration data supplied to the device, either by a user, or by software. The multiply-accumulate block operates on a time division multiplexed basis clocked by a system clock whose frequency is controlled based upon the number of signal paths through the mixer to be less than that required to generate output data for every destination from every source. Multiple signal paths can be processed within one period of the sample clock. Each signal path has a respective sample clock rate, and paths with different sample clock rates can be routed through the multiply-accumulate block on a time division multiplexed basis independently of each other.
GB201109009A 2011-05-27 2011-05-27 Digital signal routing circuit Ceased GB201109009D0 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB201109009A GB201109009D0 (en) 2011-05-27 2011-05-27 Digital signal routing circuit
GB201209258A GB2491263B (en) 2011-05-27 2012-05-25 Digital signal routing circuit
GB201209259A GB2491264B (en) 2011-05-27 2012-05-25 Digital signal routing circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB201109009A GB201109009D0 (en) 2011-05-27 2011-05-27 Digital signal routing circuit

Publications (1)

Publication Number Publication Date
GB201109009D0 true GB201109009D0 (en) 2011-07-13

Family

ID=44310558

Family Applications (3)

Application Number Title Priority Date Filing Date
GB201109009A Ceased GB201109009D0 (en) 2011-05-27 2011-05-27 Digital signal routing circuit
GB201209258A Active GB2491263B (en) 2011-05-27 2012-05-25 Digital signal routing circuit
GB201209259A Active GB2491264B (en) 2011-05-27 2012-05-25 Digital signal routing circuit

Family Applications After (2)

Application Number Title Priority Date Filing Date
GB201209258A Active GB2491263B (en) 2011-05-27 2012-05-25 Digital signal routing circuit
GB201209259A Active GB2491264B (en) 2011-05-27 2012-05-25 Digital signal routing circuit

Country Status (1)

Country Link
GB (3) GB201109009D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220058236A (en) * 2020-10-30 2022-05-09 삼성전자주식회사 Apparatus and method for processing an audio data

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5483528A (en) * 1994-10-11 1996-01-09 Telex Communications, Inc. TDM digital matrix intercom system
US7489978B2 (en) * 2001-04-23 2009-02-10 Yamaha Corporation Digital audio mixer with preview of configuration patterns
JP3744440B2 (en) * 2002-02-28 2006-02-08 ヤマハ株式会社 Mixing device, musical tone generator, and large-scale integrated circuit for mixing
US7526350B2 (en) * 2003-08-06 2009-04-28 Creative Technology Ltd Method and device to process digital media streams
EP2276186A3 (en) * 2007-03-28 2011-04-13 Yamaha Corporation Mixing signal processing apparatus and mixing signal processing integrated circuit
WO2009097009A1 (en) * 2007-08-14 2009-08-06 Personics Holdings Inc. Method and device for linking matrix control of an earpiece
US8200479B2 (en) * 2008-02-08 2012-06-12 Texas Instruments Incorporated Method and system for asymmetric independent audio rendering
US20100056050A1 (en) * 2008-08-26 2010-03-04 Hongwei Kong Method and system for audio feedback processing in an audio codec
US9883271B2 (en) * 2008-12-12 2018-01-30 Qualcomm Incorporated Simultaneous multi-source audio output at a wireless headset

Also Published As

Publication number Publication date
GB2491264A (en) 2012-11-28
GB201209258D0 (en) 2012-07-04
GB2491263B (en) 2014-08-06
GB2491263A (en) 2012-11-28
GB2491264B (en) 2014-08-20
GB201209259D0 (en) 2012-07-04

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Legal Events

Date Code Title Description
AT Applications terminated before publication under section 16(1)