§
PatentCue
Patent Intelligence
Join Waitlist Sign In
← Back to Patent Explorer
US5159448A Expired / Lapsed US ⏱️ 0.0 years remaining

Highly efficient coding apparatus

Assignee: Sony Corp
•
Filing: 1991-10-30
•
Granted: 1992-10-27
•
Expires: 2011-10-30
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract A highly efficient coding apparatus is made for developing a prediction value from a value which is ahead in time, correlation. The apparatus comprises, first to M-th prediction circuits supplied with a picture signal of each of M areas which divide a picture composed of plural lines, each consisting of plural picture elements and generating output, respectively, the first prediction circuit having structure for selecting a prediction value generated by itself and an initial value, the prediction circuits other than the first prediction circuit having structure for selecting prediction values generated by themselves and other prediction values generated by the prediction circuits for processing divided areas adjacent in space and being ahead in time, whereby the other prediction circuits select other prediction values through the selecting structure at timing of processisng of picture element data which is closest to the border of the divided areas.

Inventors

  • 👤 Yuichi Kojima

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 06:14
CPC Classifications
H; H04; H04N; H04N19/00; H04N19/50; H04N19/593; H04N19/503; H04N19/30

Claims Analysis

Total Claims: 5
Claim 1
Independent Claim 150 words
In a highly efficient coding apparatus for developing a prediction value from a value which is ahead in time, using one-dimensional or two-dimentional correlation, the apparatus comprising: a first to M-th prediction circuit supplied with a picture signal of each of M areas which divide a picture composed of plural lines, each consisting of plural picture elements and generating outputs, respectively, the first prediction circuit having means for selecting a prediction value generated by itself and an initial value, the prediction circuits other than the first prediction circuit having means for selecting prediction values generated by themselves and other prediction values generated by the prediction circuits for processing divided areas adjacent in space and being ahead in time, whereby the other prediction circuits select other prediction values through the selecting means at a timing of processing of picture element data which is closest to the border of the divided areas.
Claim 2
Dependent Claim 150 words
In a highly efficient coding apparatus for developing a prediction value from a value which is ahead in time, using one-dimensional or two-dimentional correlation, the apparatus comprising: a first to M-th prediction circuit supplied with a picture signal of each of M areas which divide a picture composed of plural lines, each consisting of plural picture elements and generating outputs, respectively, the first prediction circuit having means for selecting a prediction value generated by itself and an initial value, the prediction circuits other than the first prediction circuit having means for selecting prediction values generated by themselves and other prediction values generated by the prediction circuits for processing divided areas adjacent in space and being ahead in time, whereby the other prediction circuits select other prediction values through the selecting means at a timing of processing of picture element data which is closest to the border of the divided areas.
Claim 3
Dependent Claim 29 words
A highly efficient coding apparatus as claimed in claim 1 further comprising rearrangement means for dividing an input signal of raster scanning into picture signals of said divided areas.
Claim 4
Dependent Claim 64 words
A highly efficient coding apparatus as claimed in claim 1, wherein each of said first to the M-th prediction circuits includes a representative value generating means coupled to a non-linear quantization circuit, an adder coupled to the representative value generating means, and delay means coupled to the adder for generating said prediction value, and wherein said selecting means is coupled to said delay means.
Claim 5
Dependent Claim 19 words
A highly efficient coding apparatus as claimed in claim 1, wherein said digital picture signal is a HDTV signal.

References Cited (Backward Citations)

US4831636A Cited
US4949176A Cited
US4907081A Cited
US5049990A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1995-10-27 1996-04-27 1996-10-27 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1999-10-27 2000-04-27 2000-10-27 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2003-10-27 2004-04-27 2004-10-27 $7700.00 Window Closed / Lapsed

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag