公开(公告)号：AU4903379A

公开(公告)日：1980-01-24

申请号：AU4903379

申请日：1979-07-18

Applicant: SONY CORP

Inventor： TAKAHASHI HIROSHI ,  SHIBAZAKI ETSUO ,  YAMAMOTO YOSHIHITO

IPC: H03F3/181 ,  G10K15/02 ,  G10L11/00 ,  G11B20/00 ,  G11B20/02 ,  H03H17/00 ,  H04M3/56 ,  H03K13/01

Abstract: A digital signal mixing apparatus for mixing digital signals in S input channels to obtain digital mixed signals in T output channels is provided which includes a memory in which a matrix of S columns by T rows of elements are stored in digital form, a circuit which determines the value of the elements of the S by T matrix in response to a desired mixing ratio between the S-channels of the digital input signals and supplies these matrix elements to the memory, and a circuit which multiplies the digital signals in the S input channels by corresponding matrix elements read out from the memory to generate the digital mixed signals in the T output channels.

公开(公告)号：AU528717B2

公开(公告)日：1983-05-12

申请号：AU4903379

申请日：1979-07-18

Applicant: SONY CORP

Inventor： TAKAHASHI HIROSHI ,  SHIBAZAKI ETSUO ,  YAMAMOTO YOSHIHITO

IPC: H03F3/181 ,  G10K15/02 ,  G10L11/00 ,  G11B20/00 ,  G11B20/02 ,  H03H17/00 ,  H04M3/56 ,  H03K13/02 ,  H03K17/00 ,  H04R3/00

Abstract: A digital signal mixing apparatus for mixing digital signals in S input channels to obtain digital mixed signals in T output channels is provided which includes a memory in which a matrix of S columns by T rows of elements are stored in digital form, a circuit which determines the value of the elements of the S by T matrix in response to a desired mixing ratio between the S-channels of the digital input signals and supplies these matrix elements to the memory, and a circuit which multiplies the digital signals in the S input channels by corresponding matrix elements read out from the memory to generate the digital mixed signals in the T output channels.

公开(公告)号：CA1171171A

公开(公告)日：1984-07-17

申请号：CA389916

申请日：1981-11-12

Applicant: SONY CORP

Inventor： NAKAJIMA HEITARO ,  UMEDA KENKICHI ,  KODERA YOUICHI ,  NAITO NORIAKI ,  YAMAUCHI HIROYUKI ,  MATSUMOTO ISAO ,  NAKAMURA SHOUICHI ,  TAKADA KATSUO ,  SHIGA KEN ,  YAMAMOTO YOSHIHITO

IPC: G11B23/18 ,  G09B5/06 ,  G11B5/48 ,  G11B15/00 ,  G11B23/36 ,  G11B27/32 ,  G11B27/34 ,  G11B31/00 ,  H04N5/782 ,  G11B15/02

Abstract: A method of recording and reproducing audio signals and corresponding visual signals in parallel tracks extending in the longitudinal direction on a magnetic tape, includes the steps of recording the audio signals in first and second primary tracks on opposite sides of the tape in the widthwise direction thereof; and alternately recording a first visual information signal corresponding to the audio signal in the first primary tracks and a second visual information signal corresponding to the audio signal in the second primary tracks in a single secondary track positioned in the center of the tape in the widthwise direction thereof, the first visual information signal being recorded in first information blocks in the secondary track and the second visual information signal being recorded in second information blocks in the secondary track in an alternating relation with the first information blocks such that only the first visual information signal is reproduced when reproducing the audio signal. from the first primary tracks and only the second visual information signal is reproduced when reproducing the audio signal from the second primary tracks. The preset invention is also directed to apparatus for performing the above method.

公开(公告)号：CA1131564A

公开(公告)日：1982-09-14

申请号：CA331976

申请日：1979-07-17

Applicant: SONY CORP

Inventor： TAKAHASHI HIROSHI ,  SHIBAZAKI ETSUO ,  YAMAMOTO YOSHIHITO

IPC: H03F3/181 ,  G10K15/02 ,  G10L11/00 ,  G11B20/00 ,  G11B20/02 ,  H03H17/00 ,  H04M3/56 ,  H04R3/00

Abstract: In a digital signal mixing apparatus for mixing S-channel input digital signals to obtain T-channel output digital signals, there are provided a memory in which matrix elements ¢S x T! are stored with digital form, a circuit which determines the matrix elements ¢S x T! in response to a desired mixing ratio between the S-channel input digital signals and supplies the above matrix elements to the memory, and a circuit which operates the S-channel input digital signals with the matrix elements read out from the memory to generate the T-channel output digital signal therefrom.

公开(公告)号：DE2929273A1

公开(公告)日：1980-01-31

申请号：DE2929273

申请日：1979-07-19

Applicant: SONY CORP

Inventor： TAKAHASHI HIROSHI ,  SHIBAZAKI ETSUO ,  YAMAMOTO YOSHIHITO

IPC: H03F3/181 ,  G10K15/02 ,  G10L11/00 ,  G11B20/00 ,  G11B20/02 ,  H03H17/00 ,  H04M3/56 ,  H04H7/00

Abstract: A digital signal mixing apparatus for mixing digital signals in S input channels to obtain digital mixed signals in T output channels is provided which includes a memory in which a matrix of S columns by T rows of elements are stored in digital form, a circuit which determines the value of the elements of the S by T matrix in response to a desired mixing ratio between the S-channels of the digital input signals and supplies these matrix elements to the memory, and a circuit which multiplies the digital signals in the S input channels by corresponding matrix elements read out from the memory to generate the digital mixed signals in the T output channels.