Patent US2808884A successfully refreshed from Google Patents.
Patent US4658291A successfully refreshed from Google Patents.
US4658291A
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Stereoscopic television signal processing method, signal transmitting unit, and signal receiving unit
Assignee: NEC Home Electronics Ltd
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Filing: 1985-06-12
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Granted: 1987-04-14
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Expires: 2005-06-12
Abstract
Abstract A stereoscopic television signal processing method including a transmitting unit and a receiving unit where the method includes the steps of generating right and left eye picture signals respectively from a pair of image pick up devices disposed at the right and left sides of an object, each picture signal including four fields constituting a first odd-numbered field, a first even-numbered field, a second odd-numbered field, and a second even-numbered field occurring in the foregoing order where each field includes a plurality of horizontal scanning lines; sampling the right and left eye picture signals at predetermined time intervals so that the samples of the right and left eye picture signals are alternated on the horizontal lines of the four fields of each picture in such a manner that the sampling order is reversed (a) between successive horizontal scanning lines for each field, (b) between the first and second odd-numbered fields and (c) between the first and second even-numbered fields; transmitting the samples to a receiving location; separating from the samples, at the receiving location, the four fields of each picture signal in the order they were generated to thus extract said right and left eye picture signals; and applying the extracted right and left eye picture signals respectively to image receiving devices disposed at the right and left sides of an observer.
Inventors
- 👤 Masanobu Morishita
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:10
CPC Classifications
H; H04; H04N; H04N13/00
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
206 words
A stereoscopic television signal processing method comprising the steps of generating right and left eye picture signals respectively from a pair of image pickup means disposed at the right and left sides of an object, each said picture signal including four fields constituting a first odd-numbered field, a first even-numbered field, a second odd-numbered field and a second even-numbered field occurring in the foregoing order where each field includes a plurality of horizontal scanning lines; sampling said right and left eye picture signals at predetermined time intervals so that the samples of the right and left eye picture signals are alternated on the horizontal lines of the four fields of each picture in such a manner that the sampling order is reversed (a) between successive horizontal scanning lines for each field, (b) between the first and second odd-numbered fields and (c) between the first and second even-numbered fields; transmitting said samples to a receiving location; separating from said samples, at said receiving location; the said four fields of each picture signal to thus extract said right and left eye picture signals; and applying the extracted right and left eye picture signals respectively to image receiving means disposed at the right and left sides of an observer.
Claim 2
Dependent Claim
206 words
A stereoscopic television signal processing method comprising the steps of generating right and left eye picture signals respectively from a pair of image pickup means disposed at the right and left sides of an object, each said picture signal including four fields constituting a first odd-numbered field, a first even-numbered field, a second odd-numbered field and a second even-numbered field occurring in the foregoing order where each field includes a plurality of horizontal scanning lines; sampling said right and left eye picture signals at predetermined time intervals so that the samples of the right and left eye picture signals are alternated on the horizontal lines of the four fields of each picture in such a manner that the sampling order is reversed (a) between successive horizontal scanning lines for each field, (b) between the first and second odd-numbered fields and (c) between the first and second even-numbered fields; transmitting said samples to a receiving location; separating from said samples, at said receiving location; the said four fields of each picture signal to thus extract said right and left eye picture signals; and applying the extracted right and left eye picture signals respectively to image receiving means disposed at the right and left sides of an observer.
Claim 3
Dependent Claim
110 words
A method as in claim 1 where said right and left eye picture signals are color signals each consisting of first and second color difference signals and a luminance signal and where, in said transmitting step, adjacent ones of said samples are so transmitted that the first color difference signals of the adjacent samples are first successively transmitted followed by successive transmission of the second color difference signals of the adjacent samples and then by successive transmission of the luminance signals of the adjacent samples and where said method includes compressing each of the transmitted first and second color difference signals and luminance signals in time by respective predetermined amounts.
Claim 4
Dependent Claim
31 words
A method as in claim 2 wherein including the steps of compressing said first and second color difference signals by 1/4 in time and said luminance signals by 1/2 in time.
Claim 5
Dependent Claim
161 words
A method as in claim 1 where said right and left eye picture signals are color signals each consisting of first and second color difference signals and a luminance signal and where, in said transmitting step, one of said samples for each of said right and left eye picture signals is so transmitted that (a) one of said color difference signals is first transmitted followed by successive transmission of the luminance signal on the same horizontal line as said one color difference signal and (b) the other of said color difference signals is first transmitted followed by successive transmission of the luminance signal on the next horizontal line such that a luminance signal is transmitted to every horizontal line while the color signals alternate between the first and second color difference signals for successive horizontal lines and where said method includes compressing each of the transmitted first and second color difference signals and luminance signals in time by respective predetermined amounts.
Claim 6
Dependent Claim
28 words
A method as in claim 4 including the step of compressing said first and second color different signals by 1/4 in time and not compressing said luminance signals.
Claim 7
Dependent Claim
171 words
A signal transmission unit for use in a stereoscopic television signal processing system comprising a pair of image pickup means for generating right and left eye picture signals respectively, said pair of image pickup means being disposed at the right and left sides of an object, each said picture signal including four fields constituting a first odd-numbered field, a first even-numbered field, a second odd-numbered field and a second even-numbered field occuring in the foregoing order where each field includes a plurality of horizontal scanning lines; means for sampling said right and left eye picture signals at predetermined time intervals so that the samples of the right and left eye picture signals are alternated on the horizontal lines of the four fields of each picture in such a manner that the sampling order is reversed (a) between successive horizontal scanning lines for each field, (b) between the first and second odd-numbered fields and (c) between the first and second even-numbered fields; and means for transmitting the samples to a receiving location.
Claim 8
Dependent Claim
171 words
A signal transmission unit for use in a stereoscopic television signal processing system comprising a pair of image pickup means for generating right and left eye picture signals respectively, said pair of image pickup means being disposed at the right and left sides of an object, each said picture signal including four fields constituting a first odd-numbered field, a first even-numbered field, a second odd-numbered field and a second even-numbered field occuring in the foregoing order where each field includes a plurality of horizontal scanning lines; means for sampling said right and left eye picture signals at predetermined time intervals so that the samples of the right and left eye picture signals are alternated on the horizontal lines of the four fields of each picture in such a manner that the sampling order is reversed (a) between successive horizontal scanning lines for each field, (b) between the first and second odd-numbered fields and (c) between the first and second even-numbered fields; and means for transmitting the samples to a receiving location.
Claim 9
Dependent Claim
116 words
A unit as in claim 6 where said right and left eye picture signals are color signals each consisting of first and second color difference signals and a luminance signal and where, in said transmitting means, means are included for so transmitting adjacent ones of said samples that the first color difference signals of the adjacent samples are first successively transmitted followed by successive transmission of the second color difference signals of the adjacent samples and then by successive transmission of the luminance signals of the adjacent samples and where said unit includes means for compressing each of the tranmitted first and second color difference signals and the luminance signals in time by respective predetermined amounts.
Claim 10
Dependent Claim
30 words
A unit as in claim 7 where said compressing means compresses said first and second color difference signals by 1/4 in time and said luminance signals by 1/2 in time.
Claim 11
Dependent Claim
164 words
A unit as in claim 6 where said right and left eye picture signals are color signals each consisting of first and second color difference signals and a luminance signal and where, in said transmitting means, means are included for so transmitting one of said samples for each of said right and left eye picture signals that (a) one of said color difference signals is followed by successive transmission of the luminance signal on the same horizontal line as said one color difference signal and (b) the other of said color difference signals is first transmitted followed by successive transmission of the luminance signal on the next horizontal line such that a luminance signal is transmitted to every horizontal line while the color signals alternate between the first and second color difference signals for successive horizontal lines and where said unit includes means for compressing each of the transmitted first and second color difference signals and luminance signals in time by respective predetermined amounts.
Claim 12
Dependent Claim
27 words
A unit as in claim 9 where said first and second color difference signals are compressed by 1/4 in time and said luminance signals are not compressed.
Claim 13
Dependent Claim
220 words
A signal receiving unit in a stereoscopic television signal processing system in which a pair of right and left eye picture signals are respectively generated from a pair of image pickup means disposed at the right and left sides of an object, each said picture signal including four fields constituting a first odd-numbered field, a first even-numbered field, a second odd-numbered field and a second even numbered field occurring in the foregoing order where each field includes a plurality of horizontal scanning lines sampling means sample said right and left eye picture signals at predetermined time intervals so that the samples of the right and left eye picture signals are alternated on the horizontal lines of the four fields of each picture in such a manner that the sampling order is reversed (a) between successive horizontal scanning lines for each field, (b) between the first and second odd-numbered fields and (c) between the first and second even-numbered fields; and transmitting means for transmitting said samples to said receiving unit; means for separating from said samples the said four fields of each picture signal to thus extract said right and left eye picture signals;s and means for applying the extracted right and left eye picture signals respectively to image receiving means disposed at the right and left sides of an observer.
Claim 14
Dependent Claim
220 words
A signal receiving unit in a stereoscopic television signal processing system in which a pair of right and left eye picture signals are respectively generated from a pair of image pickup means disposed at the right and left sides of an object, each said picture signal including four fields constituting a first odd-numbered field, a first even-numbered field, a second odd-numbered field and a second even numbered field occurring in the foregoing order where each field includes a plurality of horizontal scanning lines sampling means sample said right and left eye picture signals at predetermined time intervals so that the samples of the right and left eye picture signals are alternated on the horizontal lines of the four fields of each picture in such a manner that the sampling order is reversed (a) between successive horizontal scanning lines for each field, (b) between the first and second odd-numbered fields and (c) between the first and second even-numbered fields; and transmitting means for transmitting said samples to said receiving unit; means for separating from said samples the said four fields of each picture signal to thus extract said right and left eye picture signals;s and means for applying the extracted right and left eye picture signals respectively to image receiving means disposed at the right and left sides of an observer.
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) | 1990-04-13 | 1990-10-13 | 1991-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-04-13 | 1994-10-13 | 1995-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-04-13 | 1998-10-13 | 1999-04-14 | $7700.00 | Window Closed / Lapsed |