Information signal processing device, information signal processing method, image signal processing device, image signal processing method and image displaying method using it, coefficient kind data generating device and method used therein, and computer readable medium and program
US7042513B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 22, 2002 |
| Grant date | May 9, 2006 |
| Priority date | — |
| Expiry date | Jul 22, 2023 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2340/0407
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an information signal processor and the like preferable for use in the case of converting a format of an image signal or converting an image size. An input image signal, Vin, is converted into an output image signal, Vout that has different format and/or size therefrom. A class code, CL, is obtained from tap data extracted from the Vin and corresponding to each pixel (pixel at a target position) within a unit pixel block, which constitutes Vout. Product-sum device 137 generates the coefficient data, ai0 to ai8, in the upper layered production equation in each class according to the lower layered production equation using coefficient seed data, bij0 to bij8, of each class and resolution information, g and f, during vertical blanking period, while it generates the coefficient data, Wi, in the estimated equation, according to the upper layered production equation during effective vertical scanning period using the coefficient data, ai0 to ai8, in connection with the class code CL and phase information, h and v. A calculation circuit 127 provides pixel data, y, at the target position according to the estimated equation using the tap data, xi, correspond…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.