Deutsche Thomson-brandt Gmbh

Thomson Licensing S.a.

Axel Marzluf

Hermann Link

Philippe Mace

Hermann Kornhaas

A method for the determination of the cassette type of a cassette, which contains a recording medium in the form of tape for recording and/or replaying information using an apparatus having a measurement device for measuring the tape thickness and the tape length of the recording medium, and for producing a control variable for indicating the cassette type or for initiating cassette-type-dependent functions of the apparatus. The steps include determining a value for the tape thickness, determining a value for the tape length, and logically linking the value for the tape thickness and the value for the tape length to one another, to ascertain the cassette type.

Process and device for recognizing tape cassettes of different playing times

In one embodiment, data are converted, with the aid of corresponding rules and headers, into data having a fixed block length in such a way that, with the CTL bit definition, no clashes with known data structures of the CTL track such as VISS and VASS occur. The effect achieved by this is that any desired data can be stored on the control track.

Method for recording information on the control track of a storage medium

The circuit arrangement comprises at least two movable elements (,to,) which are to be monitored and which are assigned a sensor (,to,) in each case. The output signals of the sensors (,to,) are fed to an evaluation circuit (,) via a common connection. The evaluation circuit (,) has only a single input for receiving the signals of the sensors (,to,). Each sensor (,to,) emits a pulse shape characterizing the connected element. The pulse shapes of the pulses generated by the sensors are configured in such a way that the evaluation circuit can uniquely identify the individual pulses, even in the case of superimposition.

Circuit arrangement having a sensor and an evaluation circuit

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.

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Villingen-Schwenningen, Germany

Axel Marzluf