GB2142195B - Improvements to the reading of time code - Google Patents

Improvements to the reading of time code

Info

Publication number
GB2142195B
GB2142195B GB08316872A GB8316872A GB2142195B GB 2142195 B GB2142195 B GB 2142195B GB 08316872 A GB08316872 A GB 08316872A GB 8316872 A GB8316872 A GB 8316872A GB 2142195 B GB2142195 B GB 2142195B
Authority
GB
United Kingdom
Prior art keywords
reading
time code
code
time
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.)
Expired
Application number
GB08316872A
Other versions
GB2142195A (en
GB8316872D0 (en
Inventor
Robin Bransbury
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB08316872A priority Critical patent/GB2142195B/en
Publication of GB8316872D0 publication Critical patent/GB8316872D0/en
Publication of GB2142195A publication Critical patent/GB2142195A/en
Application granted granted Critical
Publication of GB2142195B publication Critical patent/GB2142195B/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B20/00—Signal processing not specific to the method of recording or reproducing; Circuits therefor
    • G11B20/10—Digital recording or reproducing
    • G11B20/14—Digital recording or reproducing using self-clocking codes
    • G11B20/1403—Digital recording or reproducing using self-clocking codes characterised by the use of two levels
    • G11B20/1407—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol
    • G11B20/1419—Digital recording or reproducing using self-clocking codes characterised by the use of two levels code representation depending on a single bit, i.e. where a one is always represented by a first code symbol while a zero is always represented by a second code symbol to or from biphase level coding, i.e. to or from codes where a one is coded as a transition from a high to a low level during the middle of a bit cell and a zero is encoded as a transition from a low to a high level during the middle of a bit cell or vice versa, e.g. split phase code, Manchester code conversion to or from biphase space or mark coding, i.e. to or from codes where there is a transition at the beginning of every bit cell and a one has no second transition and a zero has a second transition one half of a bit period later or vice versa, e.g. double frequency code, FM code
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B27/00—Editing; Indexing; Addressing; Timing or synchronising; Monitoring; Measuring tape travel
    • G11B27/10—Indexing; Addressing; Timing or synchronising; Measuring tape travel
    • G11B27/19—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier
    • G11B27/28—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording
    • G11B27/32—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier
    • G11B27/322—Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on separate auxiliary tracks of the same or an auxiliary record carrier used signal is digitally coded
    • G11B27/323—Time code signal, e.g. on a cue track as SMPTE- or EBU-time code

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Stabilization Of Oscillater, Synchronisation, Frequency Synthesizers (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
GB08316872A 1983-06-21 1983-06-21 Improvements to the reading of time code Expired GB2142195B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB08316872A GB2142195B (en) 1983-06-21 1983-06-21 Improvements to the reading of time code

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08316872A GB2142195B (en) 1983-06-21 1983-06-21 Improvements to the reading of time code

Publications (3)

Publication Number Publication Date
GB8316872D0 GB8316872D0 (en) 1983-07-27
GB2142195A GB2142195A (en) 1985-01-09
GB2142195B true GB2142195B (en) 1986-08-20

Family

ID=10544576

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08316872A Expired GB2142195B (en) 1983-06-21 1983-06-21 Improvements to the reading of time code

Country Status (1)

Country Link
GB (1) GB2142195B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE465345B (en) * 1990-01-04 1991-08-26 Ellemtel Utvecklings Ab PROCEDURE AND DEVICE IN A TELECOMMUNICATION SYSTEM, ATTRACTING THE TASK SIGNAL OF AN INFORMATION-SUBJECTING BITUP DIVIDED PULSE TAG OF NRZ TYPE

Also Published As

Publication number Publication date
GB2142195A (en) 1985-01-09
GB8316872D0 (en) 1983-07-27

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Legal Events

Date Code Title Description
PCPE Delete 'patent ceased' from journal

Free format text: 5162, PAGE 352

PCNP Patent ceased through non-payment of renewal fee