EP0339932A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Playback method for use in a recording medium playing apparatus, recording medium, and system for recording and reproducing information on and from a recording medium
Assignee: Pioneer Video Corp
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Filing: 1989-04-25
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Granted: —
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Expires: 2009-04-25
Abstract
Abstract A playback method for use in an apparatus for playing a recording medium having a lead-in area, a first area in which only a coded information signal is recorded, and a second area in which a video format signal and a coded information signal are recorded by using a multiplexing operation. The method is characterized by the operations of reading information recorded in the lead-in area in response to a command, moving an information reading point of the pickup to the first area of the recording medium when subcode picture presence information, which indicates that a graphic code including picture information is inserted in a subcode of the coded information signal, is detected from information recovered from the lead-in area, and reproducing information of the first area preferentially to other areas of the recording medium.
Inventors
- 👤 Junichi Yoshio
- 👤 Sumio Hosaka
- 👤 Hisao Matsuoka
- 👤 Youichirou Tsuda
- 👤 Shoichi Katagiri
- 👤 Satoru Nomura
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-02 20:07
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/79; H04N9/80; H04N9/802; G; G11; G11B; G11B27/00; G11B27/10; G11B27/102; G11B27/105; G11B27/19; G11B27/28; G11B27/30; G11B27/3027; G11B27/3063; H04N5/00; H04N5/76; H04N5/91; H04N5/92; H04N5/9201; H04N5/9206; H04N5/9208; G11B2220/00; G11B2220/20; G11B2220/25; G11B2220/2537; G11B2220/2545
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
140 words
A playback method for use in an apparatus for playing a recording medium having a lead-in area, a first area in which only a coded information signal is recorded, and a second area in which a video format signal and a coded information signal are recorded by using a multiplexing operation, said playback method comprising the steps of: reading information recorded in said lead-in area in response to a command; detecting, from information recovered from said lead-in area, subcode picture presence information which indicates that a graphic code including picture information is inserted in a subcode of said coded information signal; moving an information reading point of said pickup to said first area of said recording medium when said subcode picture presence information is detected; and reproducing information of said first area preferentially to other areas of said recording medium.
Claim 2
Dependent Claim
140 words
A playback method for use in an apparatus for playing a recording medium having a lead-in area, a first area in which only a coded information signal is recorded, and a second area in which a video format signal and a coded information signal are recorded by using a multiplexing operation, said playback method comprising the steps of: reading information recorded in said lead-in area in response to a command; detecting, from information recovered from said lead-in area, subcode picture presence information which indicates that a graphic code including picture information is inserted in a subcode of said coded information signal; moving an information reading point of said pickup to said first area of said recording medium when said subcode picture presence information is detected; and reproducing information of said first area preferentially to other areas of said recording medium.
Claim 3
Dependent Claim
86 words
A recording medium having a lead-in area, a first area in which a coded information signal into which a graphic code including picture information is inserted as a subcode is recorded, and a second area in which a video format signal and a coded information signal are recorded by using a multiplexing operation, wherein subcode picture presence information, indicating that said graphic code including picture information is inserted as the subcode into said coded information signal in said first area, is recorded in said lead-in area.
Claim 4
Dependent Claim
86 words
A recording medium having a lead-in area, a first area in which a coded information signal into which a graphic code including picture information is inserted as a subcode is recorded, and a second area in which a video format signal and a coded information signal are recorded by using a multiplexing operation, wherein subcode picture presence information, indicating that said graphic code including picture information is inserted as the subcode into said coded information signal in said first area, is recorded in said lead-in area.
Claim 5
Dependent Claim
103 words
A method as claimed in claim 1, wherein said apparatus includes a manual switch to be operated to an "on" position for designating a preferential playback of said first area, and said playback method further comprises a step for judging an on/off state of said manual switch when said subcode picture presence information is detected, and wherein said information reading point of said pickup is moved to said first area of said recording medium and said information of said first area is reproduced preferentially to other areas of said recording medium only when it is judged that said manual switch is turned on.
Claim 6
Independent Claim
141 words
A method of recording and reproducing information on and from a recording medium, said method comprising the steps of: recording a coded information signal into which a graphic code including picture information is inserted, in a first area of said recording medium; recording a video format signal and a coded information signal in a second area of said recording medium by a multiplexing operation; recording subcode picture priority command information for commanding a preferential playback of picture by a subcode, in a third area of said recording medium; reading, at a time of playback of said recording medium, information recorded in said third area; detecting said subcode picture priority command information from retrieved information; moving an information reading point of a pickup toward said first area when said information is detected; and playing back said first area preferentially to other areas.
Claim 7
Independent Claim
141 words
A method of recording and reproducing information on and from a recording medium, said method comprising the steps of: recording a coded information signal into which a graphic code including picture information is inserted, in a first area of said recording medium; recording a video format signal and a coded information signal in a second area of said recording medium by a multiplexing operation; recording subcode picture priority command information for commanding a preferential playback of picture by a subcode, in a third area of said recording medium; reading, at a time of playback of said recording medium, information recorded in said third area; detecting said subcode picture priority command information from retrieved information; moving an information reading point of a pickup toward said first area when said information is detected; and playing back said first area preferentially to other areas.
Claim 8
Dependent Claim
155 words
A recording medium playing apparatus for playing a recording medium having a first area in which a coded information signal into which a graphic code including picture information is inserted as a subcode is recorded, and a second area in which a video format signal and a coded information signal are recorded by using a multiplexing operation, and a third area in which subcode picture priority command information, commanding a preferential playback of a picture by said subcode, is recorded, said apparatus comprising: a playing means including a pickup for playing said recording medium; and a control means for controlling said playing means to perform operations of reading information recorded in said third area, detecting said subcode picture priority command information from retrieved information, moving an information reading point of said pickup toward said first area when said subcode picture priority command information is detected, and playing back said first area preferentially to other areas.
Claim 9
Dependent Claim
155 words
A recording medium playing apparatus for playing a recording medium having a first area in which a coded information signal into which a graphic code including picture information is inserted as a subcode is recorded, and a second area in which a video format signal and a coded information signal are recorded by using a multiplexing operation, and a third area in which subcode picture priority command information, commanding a preferential playback of a picture by said subcode, is recorded, said apparatus comprising: a playing means including a pickup for playing said recording medium; and a control means for controlling said playing means to perform operations of reading information recorded in said third area, detecting said subcode picture priority command information from retrieved information, moving an information reading point of said pickup toward said first area when said subcode picture priority command information is detected, and playing back said first area preferentially to other areas.
References Cited (Backward Citations)
No citation records indexed.
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