Correction of the tape-counting devices of a recorder

• US 5,825,573 A
• Filed: 06/13/1996
• Issued: 10/20/1998
• Est. Priority Date: 08/07/1995
• Status: Expired due to Term

• Current Assignee: Deutsche Thomson-Brandt Gmbh (Vantiva SA)
• Original Assignee: Deutsche Thomson-Brandt Gmbh (Vantiva SA)
• Inventors: Mace, Philippe, Link, Hermann, Marzluf, Axel
• Primary Examiner(s): Dinh, Tan
• Application Number:
  US08/663,360
• Time in Patent Office: 859 Days
• Field of Search: 360/72.2, 360/72.1, 360/69, 360/71, 386/83, 386/95, 386/79
• US Class Current: 360/72.2
• CPC Class Codes: G11B 2220/91 Helical scan format, wherein tracks are slightly tilted with respect to tape direction, e.g. VHS, DAT, DVC, AIT or exabyte
• CPC Class Codes: G11B 27/107 of operating tapes
• CPC Class Codes: G11B 27/324 Duty cycle modulation of control pulses, e.g. VHS-CTL-coding systems, RAPID-time code, VASS- or VISS-cue signals

Abstract

Machine for recording and playing back information with a tape-storage medium comprising a tape-counting device for determining locations on the storage medium representing a beginning, an end or a section of a recorded information and labeling the locations as data. The labeled locations are stored in memory and marked. Selective winding to a chosen recording section which is associated with one of the marks occurs by means of the tape-counting device and the stored labeled data, together with another one of the marks which is detected and used as a reference, wherein, due to the detection of this reference mark, the tape-counting device is set to the data which was determined with the setting of the reference mark, and wherein the mark associated with the chosen recording section is dependent on the data of this reference mark. A tolerance window arranged symmetrically with respect to the reference mark is included to assist in the detection of the reference mark.

Claims

1. Machine for recording and playing back information with a tape-storage medium comprising:

a tape-counting device for determining locations on said storage medium representing a beginning, an end or a section of a recorded information and labeling said locations as data, said determining and labeling of said locations defining a setting,

means for storing the labeled data in a static memory,

means for evaluation of the labeled data,

means for marking and detection of locations on said tape-storage medium representing a beginning, an end or a section of a recorded information wherein at least one of marks in addition to a reference mark corresponding to the detected locations are recorded onto said tape-storage medium, and

means for selectively winding to a chosen recording section associated with one of said at least one of marks by means of the tape-counting device and said stored labeled data together with one of said detectable marks which is used as the reference wherein, due to the detection of this reference mark, the tape-counting device is set to the data which was determined with the setting of said reference mark, and wherein the mark associated with said chosen recording section is dependent on said data of said reference mark.

2. Machine according to claim 1, wherein by evaluation of the respective counter reading data and remaining playing time data the position of the reference mark on the tape recording medium is determined, there being provided for finding the reference mark a tolerance window arranged symmetrically with respect to the reference mark and which corresponds to a predeterminable counter reading difference and playing time difference.