US4868682A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of recording and reproducing video and sound information using plural recording devices and plural reproducing devices
Assignee: Yamaha Corp
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Filing: 1987-06-25
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Granted: 1989-09-19
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Expires: 2007-06-25
Abstract
Abstract A method of recording and reproducing video and sound information using plural recording devices and plural reproducing devices is described. An original space in which video and sound information are to be recorded is divided into plural sections. A video recording device and a corresponding sound recording device are provided for each section of the original space. A reproduction space in which video and sound information are to be reproduced is divided into plural sections corresponding to the plural sections of the original space. Synchronous operation of plural video reproducing devices is performed simultaneously with synchronous operation of plural sound reproducing devices so that the picture and sound of each section of the original space are reproduced simultaneously in a corresponding section of the reproduction space. In this manner, synchronization of picture and sound is easily achieved, and the picture and sound of the original space are reproduced with high fidelity.
Inventors
- 👤 Yasushi Shimizu
- 👤 Yoshikazu Ando
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:32
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/76; H04N5/765; H04N5/77; H04N5/78; H04N5/782
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
120 words
A method of recording and reproducing video and sound information comprising: a step of recording video information separately for each of plural visual fields defined by dividing an overall visual field from which video information and sound information are to be recorded and recording also sound information separately for each of said plural visual fields simultaneously with the recording of said video information in each of said plural visual fields, whereby for each visual field recording there is a corresponding sound recording; and a step of reproducing said video information recorded for each of said plural visual fields and reproducing also said sound information recorded for each of said plural visual fields simultaneously with the reproduction of said video information.
Claim 2
Independent Claim
120 words
A method of recording and reproducing video and sound information comprising: a step of recording video information separately for each of plural visual fields defined by dividing an overall visual field from which video information and sound information are to be recorded and recording also sound information separately for each of said plural visual fields simultaneously with the recording of said video information in each of said plural visual fields, whereby for each visual field recording there is a corresponding sound recording; and a step of reproducing said video information recorded for each of said plural visual fields and reproducing also said sound information recorded for each of said plural visual fields simultaneously with the reproduction of said video information.
Claim 3
Dependent Claim
49 words
A method of recording and reproducing video and sound information as defined in claim 1 wherein said recording for each visual field is performed by video recording means having a predetermined visual field and sound recording means having sound directivity which is substantially the same as said visual field.
Claim 4
Dependent Claim
53 words
A method of recording and reproducing video and sound information as defined in claim 2 wherein said reproduction is performed by video reproducing means for reproducing said video information recorded in said visual field of said video recording means and sound reproducing means disposed within a visual field of the video reproducing means.
Claim 5
Independent Claim
139 words
A method of recording an reproducing video and sound information comprising the steps of: dividing an original space from which video information and sound information are to be recorded into plural sections; recording video information and sound information simultaneously from each of the plural sections, the sound information recorded in each of the plural sections substantially corresponding to the visual field of that particular section; dividing a reproduction visual field in which video information and sound information are to be reproduced into plural sections corresponding to the plural sections of the original space from which video information and sound information were recorded; and reproducing in each section of the reproduction visual field the video information recorded from the corresponding section of the original space simultaneously with the sound information recorded from the corresponding plural section of the original space.
Claim 6
Independent Claim
139 words
A method of recording an reproducing video and sound information comprising the steps of: dividing an original space from which video information and sound information are to be recorded into plural sections; recording video information and sound information simultaneously from each of the plural sections, the sound information recorded in each of the plural sections substantially corresponding to the visual field of that particular section; dividing a reproduction visual field in which video information and sound information are to be reproduced into plural sections corresponding to the plural sections of the original space from which video information and sound information were recorded; and reproducing in each section of the reproduction visual field the video information recorded from the corresponding section of the original space simultaneously with the sound information recorded from the corresponding plural section of the original space.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-18 | 1993-03-20 | 1993-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-18 | 1997-03-20 | 1997-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-18 | 2001-03-20 | 2001-09-19 | $7700.00 | Window Closed / Lapsed |