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  2. /G · Physics
  3. /G11 · Information storage
  4. /G11B · Information storage based on relative movement between record carrier and transducer
  5. /G11B 20/00 · Signal processing not specific to the method of recording or reproducing
  6. /G11B 20/02 · Analogue recording or reproducing
  7. /G11B 20/04
G11B 20/04

Direct recording or reproducing

G11B20/04 (Direct recording or reproducing) appears on 4 US grants and 3 published applications in this corpus.

Search patents in G11B

Where it sits

  1. GPhysics
  2. G11Information storage
  3. G11BInformation storage based on relative movement between record carrier and transducer
  4. G11B 20/00Signal processing not specific to the method of recording or reproducing
  5. G11B 20/02Analogue recording or reproducing
  6. G11B 20/04Direct recording or reproducing
Granted patents
4
Published applications
3
Assignees
2
Inventors
12
Latest grant
20 Aug 2019

Filings by year

Granted patentsPublished applications
G11B 20/04: granted patents and published applications per publication year
YearGranted patentsPublished applications
198510
198600
198700
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199000
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199400
199500
199600
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199800
199900
200000
200100
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200600
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200900
201000
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201300
201400
201500
201600
201711
201802
201920

1985199520052019

By publication year. Applications have been published since 2001.

Recent patents

  • Audio digitization20 Aug 2019US 10,388,306 B2Blackmagic Design Pty Ltd
  • Encoding, distribution and reproduction of audio media using mechanical image digitization8 Jan 2019US 10,176,844 B2
  • Encoding, distribution and reproduction of audio media using mechanical image digitization28 Nov 2017US 9,830,945 B2
  • Automatic level adjustment with means for minimizing drop-out effects12 Mar 1985US 4,504,870 AVictor Company of Japan, Ltd.
  • Audio digitization11 Oct 2018US 2018/0294002 A1Blackmagic Design Pty Ltd
  • Encoding, distribution and reproduction of audio media using mechanical image digitization8 Feb 2018US 2018/0040347 A1
  • Encoding, distribution and reproduction of audio media using mechanical image digitization4 May 2017US 2017/0125054 A1

Most cited

By later US patents
  • Automatic level adjustment with means for minimizing drop-out effects5US 4,504,870 AVictor Company of Japan, Ltd. · 1985

Top assignees

Documents
  • BDBlackmagic Design Pty Ltd2
  • Victor Company of Japan, Ltd.1

Often classified with

  • H04NPictorial communication2

Documents that also carry the other class.

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Search every US patent grant since 1976 and every published application since 2001. Updated weekly from USPTO.

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