Title:
VARIABLE SPEED REPRODUCTION DEVICE
Document Type and Number:
Japanese Patent JP3225809
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide the variable speed reproduction device possible for noiseless reproduction with high quality even in the case of non-integral number multiple reproduction in a VTR possible for variable speed reproduction.
SOLUTION: A speed command for variable speed reproduction is fed to a capstan control means 18 and tape feed control and phase synchronization control in response to a command. A setting value to maximize a reproduction output of a specific field is given to a reference phase. A speed command is applied to a cylinder control means 16 and head selection and drive control of a cylinder 1 in response to the command are conducted. A chroma rotation signal J is supplied from the cylinder control means 16 as field selection information and write to a field memory 5 is inhibited for the memory control means 9 for a specific period. As a result, the video signal with a field having a small reproduction output is not received by the field memory 5 but the information received precedingly is read again and high quality noiseless reproduction is attained.
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Inventors:
Yasuaki Toyama
Tomohiko Sakatani
Hiroshi Egusa
▲吉▼川 昭
Yutaka Ota
Tomohiko Sakatani
Hiroshi Egusa
▲吉▼川 昭
Yutaka Ota
Application Number:
JP27084495A
Publication Date:
November 05, 2001
Filing Date:
October 19, 1995
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04N5/783; G11B5/027; G11B15/467; H04N5/91; H04N5/93; H04N5/937; (IPC1-7): H04N5/783; G11B5/027; G11B15/467; H04N5/93; H04N5/937
Domestic Patent References:
| JP467456A | ||||
| JP59117381A |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)