Basf Aktiengesellschaft

Gerhard Rotter

Klaus Schoettle

Karl Uhl

Heinrich Wittkamp

Wolfram Kittler

Robert Gertz

A color video tape recording/playback system with a magnetic tape unit and possibly a color video camera comprises at least one signal storage means, e.g. a charge-coupled device (CCD), for the intermediate storage of the video information, thus enabling the recording to be carried out with a reduced bandwidth or at a reduced tape speed and, if applicable, with a reduction of time base errors. Skip line or skip field methods are used or the grouping of several lines is exploited. The reduction of time base errors during playback is achieved by clocking out the stored signal from the charge-coupled device at the rhythm of the tape speed fluctuations in the tape recorder.

Color video tape recording/playback system

A magnetic tape cassette comprises a housing open on one side and, movable therein, a sheath enclosing a magnetic tape roll. Detachable retaining means in the cassette hold the sheath and the roll in position while the cassette is not on the recorder. The retaining means are detachable by unlatching means when the cassette is fitted to the recorder, so that, following a movement of the sheath, the cassette is opened to allow the roll to emerge at least partially from the cassette and the circumference of the roll to be rotated by means of a recorder-associated capstan provided outside the cassette. Further advantageous embodiments of the invention concern the cassette and the recorder. The cassette of the invention and the recorder associated therewith can be employed in all fields of magnetic tape recording and reproduction. Its application to a magnetic tape system with a self-threading tape end entails advantages.

Tape recorder and magnetic tape cassette

The invention relates to a cartridge for a recording medium in tape or strip form and a transport apparatus for use with such a cartridge, both being favorably matched to one another according to the invention. The cartridge consists essentially of a housing which is composed of parts pivotally connected to one another and, in the closed position, completely encloses a roll of tape wound on a hub. In the open position of the cartridge, at least part of the roll of tape is so exposed that the roll can be rotated and the tape or strip scanned on the apparatus. The transport apparatus is provided with appropriately designed means for receiving the cartridge which, when some of its components are pivoted, swings apart the parts of the cartridge, which is placed upon the apparatus in the closed position, and thus opens the cartridge.

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Ludwigshafen, Germany

Gerhard Rotter