Patent US5247353A successfully refreshed from Google Patents.
US5247353A
Expired / Lapsed
US
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Motion detection system for high definition television receiver
Assignee: Samsung Electronics Co Ltd
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Filing: 1989-10-30
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Granted: 1993-09-21
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Expires: 2009-10-30
Abstract
Abstract A motion area detector capable of simple detection of a moving picture-area in a HDTV receiver of a multiple subsampling transmission system is disclosed. The motion area detector includes a still-picture processor for reproducing a still picture from a picture signal applied into the detection circuit of the receiver, a moving-picture processor for reproducing a moving picture from the picture signal, a mixer for carrying out a linear mixing operation between the still picture and the moving picture, and a motion detector for detecting a motion area from a mixed picture signal of the mixer and from the still picture signal reproduced by the still picture processor and for providing information concerning a mixing ratio between the still picture and the moving picture.
Inventors
- 👤 Hyun-Duk Cho
- 👤 Woi-Soo Park
- 👤 Jong-Hwa Lee
- 👤 Hae-Mook Jung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:41
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/12; H04N7/122; H04N7/125; H04N5/00; H04N5/14; H04N5/144; H04N7/015; H04N7/0152
Claims Analysis
Total Claims: 29
Claim 1
Independent Claim
109 words
A circuit for detecting motion of pictures from a picture signal of a multiple subsampling transmission system, comprising: means for reproducing a motion picture signal from said picture signal; means for reproducing a still picture signal from said picture signal; a mixer for carrying out a mixing process between said motion picture signal and said still picture signal in accordance with a given mixing ratio, to thereby produce a mixed picture signal; and motion detection means for providing a motion detection signal to decide said mixing ratio upon picture elements corresponding to a motion area of a picture from said mixed picture signal and said reproduced still picture signal.
Claim 2
Dependent Claim
109 words
A circuit for detecting motion of pictures from a picture signal of a multiple subsampling transmission system, comprising: means for reproducing a motion picture signal from said picture signal; means for reproducing a still picture signal from said picture signal; a mixer for carrying out a mixing process between said motion picture signal and said still picture signal in accordance with a given mixing ratio, to thereby produce a mixed picture signal; and motion detection means for providing a motion detection signal to decide said mixing ratio upon picture elements corresponding to a motion area of a picture from said mixed picture signal and said reproduced still picture signal.
Claim 3
Dependent Claim
69 words
The circuit as set forth in claim 1, wherein said motion detection means comprises: memory means for storing said mixed picture signal provided from said mixer; computing means for obtaining an absolute value of difference between said reproduced still picture signal and the picture signal stored in said memory; and smoothing means for providing the motion detection signal in response to said absolute value, to smooth said motion area.
Claim 4
Dependent Claim
19 words
The circuit as set forth in claim 2, wherein said smoothing means comprises at least one intermediate value filter.
Claim 5
Dependent Claim
22 words
The circuit as set forth in claim 2, further comprised of a bit converter connected between said smoothing means and said mixer.
Claim 6
Dependent Claim
105 words
A circuit for detecting motion of pictures from a picture signal, comprising: means for reproducing a motion picture signal from an input picture signal of a multiple subsampling transmission system; means for reproducing a still picture signal from said picture signal; means for mixing said motion picture signal and said still picture signal in accordance with a given mixing ratio, to thereby produce a mixed picture signal; and motion detection means for providing motion detection signals to determine said mixing ratio on the basis of picture elements corresponding to a motion area of a picture from said mixed picture signal and said still picture signal.
Claim 7
Dependent Claim
105 words
A circuit for detecting motion of pictures from a picture signal, comprising: means for reproducing a motion picture signal from an input picture signal of a multiple subsampling transmission system; means for reproducing a still picture signal from said picture signal; means for mixing said motion picture signal and said still picture signal in accordance with a given mixing ratio, to thereby produce a mixed picture signal; and motion detection means for providing motion detection signals to determine said mixing ratio on the basis of picture elements corresponding to a motion area of a picture from said mixed picture signal and said still picture signal.
Claim 8
Dependent Claim
71 words
The circuit as set forth in claim 5, wherein said motion detection means comprises: memory means for storing said mixed picture signal produced by said mixer means; computing means for obtaining absolute values of differences between said reproducing still picture signal and the mixed picture signal stored in said memory means; and smoothing means for providing motion detection signals in response to said absolute values and for smoothing said motion area.
Claim 9
Dependent Claim
19 words
The circuit as set forth in claim 6, wherein said smoothing means comprises at least one intermediate value filter.
Claim 10
Dependent Claim
23 words
The circuit as set forth in claim 6, further comprises of a bit converter connected between said smoothing means and said mixing means.
Claim 11
Dependent Claim
52 words
The circuit of claim 5, wherein: said still picture signal reproducing means generates said still picture signal by interframe interpolation between a current frame and a preceding frame; and said motion detection means detects a motion area by operating upon a preceding frame of said mixed picture and said still picture signal.
Claim 12
Dependent Claim
59 words
The circuit of claim 5, wherein said motion detection means comprises: means for generating differences signals between picture elements of a preceding frame of said mixed picture and picture elements of said still picture signal; means for converting said differences signals into absolute values; and means for smoothing boundaries of the motion area by operating upon said absolute values.
Claim 13
Dependent Claim
26 words
The circuit of claim 10, wherein said still picture signal reproducing means generates said still picture signal by interframe interpolation between current frames and preceding frames.
Claim 14
Dependent Claim
56 words
The circuit of claim 5, wherein said motion picture reproducing means comprises: an intrafield interpolation filter coupled to receive said input picture signal and provide a first intermediate picture signal; and a sampling frequency converter coupled to said intrafield interpolation filter to provide said motion picture signal by changing frequency of said first intermediate picture signal.
Claim 15
Dependent Claim
72 words
The circuit of claim 5, wherein said motion picture reproducing means comprises: an intrafield interpolation filter coupled to receive said input picture signal and provide a first intermediate picture signal without aliasing in a zero to twelve megaHertz frequency band; and a sampling frequency converter coupled to said intrafield interpolation filter to provide said motion picture signal by changing frequency of said first intermediate picture signal from thirty-two megaHertz to twenty-four megaHertz.
Claim 16
Dependent Claim
80 words
The circuit of claim 5, wherein said still picture reproducing means comprises: an interframe interpolation filter coupled to receive said input picture signal and provide an interpolated picture signal; a sampling frequency converter coupled to said interframe interpolation filter to provide an intermediate picture signal by changing frequency of said interpolated picture signal; and an interfield interpolation filter coupled to said sampling frequency converter to provide said still picture signal by removing high frequency components of said intermediate picture signal.
Claim 17
Dependent Claim
82 words
The circuit of claim 12, wherein said still picture reproducing means comprises: an interframe interpolation filter coupled to receive said input picture signal and provide an interpolated picture signal; a sampling frequency converter coupled to said interframe interpolation filter to provide a second intermediate picture signal by changing frequency of said interpolated picture signal; and an interfield interpolation filter coupled to said sampling frequency converter to provide said still picture signal by removing high frequency components of said second intermediate picture signal.
Claim 18
Dependent Claim
82 words
The circuit of claim 13, wherein said still picture reproducing means comprises: an interframe interpolation filter coupled to receive said input picture signal and provide an interpolated picture signal; a sampling frequency converter coupled to said interframe interpolation filter to provide a second intermediate picture signal by changing frequency of said interpolated picture signal; and an interfield interpolation filter coupled to said sampling frequency converter to provide said still picture signal by removing high frequency components of said second intermediate picture signal.
Claim 19
Dependent Claim
56 words
The circuit of claim 10, wherein said motion picture reproducing means comprises: an intrafield interpolation filter coupled to receive said input picture signal and provide a first interpolated picture signal; and a sampling frequency converter coupled to said intrafield interpolation filter to provide said motion picture signal by changing frequency of said first intermediate picture signal.
Claim 20
Dependent Claim
82 words
The circuit of claim 17, wherein said still picture reproducing means comprises: an interframe interpolation filter coupled to receive said input picture signal and provide an interpolated picture signal; a sampling frequency converter coupled to said interframe interpolation filter to provide a second intermediate picture signal by changing frequency of said interpolated picture signal; and an interfield interpolation filter coupled to said sampling frequency converter to provide said still picture signal by removing high frequency components of said second intermediate picture signal.
Claim 21
Dependent Claim
79 words
A process for detecting motion of pictures from a picture signal, comprising: reproducing a still picture signal from said picture signal; mixing said motion picture signal and said still picture signal in accordance with a given mixing ratio, to thereby produce a mixed picture signal; and generating motion detection signals to determine said mixing ratio on the basis of picture elements corresponding to a motion area of a picture from said mixed picture signal and said still picture signal.
Claim 22
Dependent Claim
79 words
A process for detecting motion of pictures from a picture signal, comprising: reproducing a still picture signal from said picture signal; mixing said motion picture signal and said still picture signal in accordance with a given mixing ratio, to thereby produce a mixed picture signal; and generating motion detection signals to determine said mixing ratio on the basis of picture elements corresponding to a motion area of a picture from said mixed picture signal and said still picture signal.
Claim 23
Dependent Claim
55 words
The process of claim 19, wherein said step of generating detection signals comprises: generating difference signals between picture elements of a preceding frame of said mixed picture and picture elements of said still picture signal; converting said difference signals into absolute values; and smoothing boundaries of the motion area by operating upon said absolute values.
Claim 24
Dependent Claim
57 words
The process of claim 20, wherein said step of reproducing a motion picture comprises: generating a first intermediate picture signal by subjecting said input picture signal to an intrafield interpolation; and subjecting said first intermediate picture signal to sampling frequency conversion to provide said motion picture signal by changing the frequency of said first intermediate picture signal.
Claim 25
Dependent Claim
82 words
The process of claim 21, wherein said step of reproducing a still picture comprises: subjecting said input picture signal to interframe interpolation filtering to provide an interpolated picture signal; subjecting said interpolated picture signal to sampling frequency conversion to provide a second intermediate picture signal by changing the frequency of said interpolated picture signal; and subjecting said second intermediate picture signal to intrafield interpolation filtering to provide said still picture signal by removing high frequency components of said second intermediate picture signal.
Claim 26
Dependent Claim
128 words
A circuit for detecting motion of pictures, comprising: memory means for storing mixed picture signals resulting from a linear mixing of moving picture signals obtained from interfield picture signals and still picture signals; means for generating difference signals by obtaining absolute values of differences between picture elements of said a current frame of said still picture signals and picture elements of a preceding frame of said mixed picture signals stored by said memory means; and means, in response to reception of said difference signals, for smoothing boundaries of a motion area of said mixed pictures represented by said mixed picture signals by providing motion detection signals suggestive of mixing ratios between picture elements corresponding to said motion area and a still picture represented by said still picture signals.
Claim 27
Dependent Claim
128 words
A circuit for detecting motion of pictures, comprising: memory means for storing mixed picture signals resulting from a linear mixing of moving picture signals obtained from interfield picture signals and still picture signals; means for generating difference signals by obtaining absolute values of differences between picture elements of said a current frame of said still picture signals and picture elements of a preceding frame of said mixed picture signals stored by said memory means; and means, in response to reception of said difference signals, for smoothing boundaries of a motion area of said mixed pictures represented by said mixed picture signals by providing motion detection signals suggestive of mixing ratios between picture elements corresponding to said motion area and a still picture represented by said still picture signals.
Claim 28
Dependent Claim
57 words
The process of claim 19, wherein said step of reproducing a motion picture comprises: generating a first intermediate picture signal by subjecting said input picture signal to an intrafield interpolation; and subjecting said first intermediate picture signal to sampling frequency conversion to provide said motion picture signal by changing the frequency of said first intermediate picture signal.
Claim 29
Dependent Claim
82 words
The process of claim 19, wherein said step of reproducing a still picture comprises: subjecting said input picture signal to interframe interpolation filtering to provide an interpolated picture signal; subjecting said interpolated picture signal to sampling frequency conversion to provide a second intermediate picture signal by changing the frequency of said interpolated picture signal; and subjecting said second intermediate picture signal to interfield interpolation filtering to provide said still picture signal by removing high frequency components of said second intermediate picture signal.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1996-09-20 | 1997-03-22 | 1997-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-09-20 | 2001-03-22 | 2001-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-09-20 | 2005-03-22 | 2005-09-21 | $7700.00 | Window Closed / Lapsed |