JPH0292803U

JPH0292803U -

Info

Publication number: JPH0292803U
Application number: JP16917988U
Authority: JP
Priority date: 1988-12-29
Filing date: 1988-12-29
Publication date: 1990-07-24
Anticipated expiration: 2003-12-29
Also published as: JP2520536Y2

Description

[Brief explanation of drawings]

第１図は本考案のデイジタル録音再生装置のブ
ロツク構成図、第２図は４つの回転ヘツドの配置
を示す回転ドラムの平面図、第３図は４つの回転
ヘツドの高さ方向の配置図、第４図Ａ〜Ｄは各回
転ヘツドと磁気テープ上の記録トラツクとの相対
的な位置関係を示す配置図、第５図Ａ〜Ｄは４つ
の回転ヘツドの動作タイミングを示すタイミング
チヤート、第６図はミキシング後の記録内容を示
すトラツクパターン図、第７図は記録ヘツドの他
の実施例を示す高さ方向の配置図、第８図は記録
ヘツドの他の実施例及び再生ヘツドと磁気テープ
上の記録トラツクとの相対的な位置関係を示す配
置図である。１……デイジタル録音再生装置、２……マイク
アンプ、３……Ａ／Ｄ変換器、４……エンコーダ
、５……記録アンプ、６……切換え信号発生器、
７……再生アンプ、８……デコーダ、９……Ｄ／
Ａ変換器、Ａ，Ａ′，Ｂ，Ｂ′……回転ヘツド、
Ｄ……回転ドラム、ＨＡ_１〜ＨＡ_４……ヘツドア
ンプ、ＳＷ_１，ＳＷ_２……切換えスイツチ、ＲＴ
_１〜ＲＴ_４……ロータリートランス。 FIG. 1 is a block diagram of the digital recording/playback device of the present invention, FIG. 2 is a plan view of a rotating drum showing the arrangement of four rotating heads, and FIG. 3 is a heightwise arrangement of the four rotating heads. 4A to 4D are layout diagrams showing the relative positional relationship between each rotary head and the recording track on the magnetic tape, FIGS. 5A to 5D are timing charts showing the operation timing of the four rotary heads, and FIG. The figure is a track pattern diagram showing the recorded content after mixing, Figure 7 is a height layout diagram showing another embodiment of the recording head, and Figure 8 is another embodiment of the recording head, reproducing head, and magnetic tape. FIG. 3 is a layout diagram showing the relative positional relationship with the recording track above. 1... Digital recording and playback device, 2... Microphone amplifier, 3... A/D converter, 4... Encoder, 5... Recording amplifier, 6... Switching signal generator,
7...Reproduction amplifier, 8...Decoder, 9...D/
A converter, A, A', B, B'...rotating head,
D... Rotating drum, HA ₁ to _{HA 4} ... Head amplifier, SW ₁ , SW ₂ ... Changeover switch, RT
₁ ~ RT ₄ ...Rotary transformer.

Claims

[Scope of utility model registration request]

A pair of playback heads that playback previously recorded signals by alternately tracing a plurality of tracks formed diagonally at a predetermined angle with respect to the longitudinal direction of the magnetic tape; A decoder that performs predetermined signal processing, a D/A converter that converts the output signal from the decoder into an output analog audio signal, and an A/A converter that converts the supplied input analog audio signal into a digital audio signal.
a D converter, an encoder that inputs the output signal of the A/D converter and the output signal from the decoder and performs predetermined signal processing, and the output signal of the encoder is traced by the pair of playback heads. A pair of recording heads that overwrite completed tracks,
a rotating drum on which the pair of recording heads and the pair of reproduction heads are arranged at approximately equal intervals on a circumferential surface;
A digital recording and reproducing apparatus comprising: a switching signal generator that generates and outputs a switching selection signal for the pair of recording and reproducing heads based on a control signal from the decoder.