JPS62129177U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本考案の実施例に係るテープカセツト
を用いるＶＴＲの要部平面図、第２図は同片面記
録として用いるときの要部平面図、第３図は１ド
ラムの場合の要部平面図、第４図はテープカセツ
トの外観斜視図、第５図は変形例に係るテープカ
セツトの要部平面図、第６図はヘツドドラムの縦
断面図、第７図は同横断面図、第８図は変換回路
のブロツク図、第９図は記録用回路の構成を示す
ブロツク図、第１０図は再生用回路の構成を示す
ブロツク図、第１１図は磁気テープ上に形成され
るトラツクパターンを示す平面図、第１２図は往
復記録の場合のトラツクパターンを示す平面図、
第１３図はテープの連続送りの場合の動作を示す
グラフ、第１４図はテープの間欠送りの場合の動
作を示すグラフ、第１５図は２ドラムによつてテ
ープの間欠送りを行なう場合の動作を示すグラフ
、第１６図〜第２１図は磁気テープの走行方向お
よび走行速度の差による記録時間の修正動作を示
す要部平面図である。 なお図面に用いた符号において、１０……磁気
テープ、１１……テープカセツト、１５，１６…
…ヘツドドラム、４１〜４４……磁気ヘツド、９
３……カセツトケーシング、９４……矩形の開口
、９５……摺動板、９６……検出スイツチ、９７
……検出子、９８……反射板、９９……発光素子
、１００……受光素子である。 Fig. 1 is a plan view of the main parts of a VTR using a tape cassette according to an embodiment of the present invention, Fig. 2 is a plan view of the main parts when the tape cassette is used for single-sided recording, and Fig. 3 is a plan view of the main parts in the case of one drum. 4 is an external perspective view of the tape cassette, FIG. 5 is a plan view of essential parts of a tape cassette according to a modified example, FIG. 6 is a longitudinal cross-sectional view of the head drum, FIG. 7 is a cross-sectional view thereof, and FIG. Figure 9 is a block diagram of the conversion circuit, Figure 9 is a block diagram showing the configuration of the recording circuit, Figure 10 is a block diagram showing the configuration of the reproduction circuit, and Figure 11 shows the track pattern formed on the magnetic tape. FIG. 12 is a plan view showing a track pattern in the case of reciprocating recording;
Figure 13 is a graph showing the operation when the tape is continuously fed, Figure 14 is a graph showing the operation when the tape is being fed intermittently, and Figure 15 is a graph showing the operation when the tape is being fed intermittently using two drums. 16 to 21 are plan views of essential parts showing the recording time correction operation based on the difference in the running direction and running speed of the magnetic tape. In addition, in the symbols used in the drawings, 10...magnetic tape, 11...tape cassette, 15, 16...
... Head drum, 41-44 ... Magnetic head, 9
3...Cassette casing, 94...Rectangular opening, 95...Sliding plate, 96...Detection switch, 97
...Detector, 98...Reflector, 99...Light emitting element, 100... Light receiving element.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] テープ状記録媒体の表面および／または裏面を
ヘツドと対接させて記録および／または再生を行
なうようにしたテープカセツトにおいて、前記テ
ープ状記録媒体を収納したケーシングに識別手段
を設け、このケーシング内に収納されたテープ状
記録媒体が両面記録用か片面記録用かの識別を前
記識別手段によつて行なうようにしたことを特徴
とするテープカセツト。 In a tape cassette in which recording and/or reproduction is performed by bringing the front and/or back sides of a tape-shaped recording medium into contact with a head, an identification means is provided in a casing housing the tape-shaped recording medium, and an identification means is provided in the casing. A tape cassette, characterized in that the identification means identifies whether the stored tape-shaped recording medium is for double-sided recording or for single-sided recording.