Title:
RECORD SCANNING DENSITY CONVERSION CIRCUIT
Document Type and Number:
Japanese Patent JPS62183264
Kind Code:
A
Abstract:
PURPOSE:To attain the processings such as interpolation of a line and a picture element and thinning-out in a way of non-integral number with small circuit constitution by providing a division signal generating means for outputting a division signal in a width corresponding to a ratio between a scanning density of an input picture signal and a scanning density of an equipment at the output side and an integration/correction means. CONSTITUTION:The titled circuit converts an image signal S1 having a scanning density alpha obtained by demodulating a signal sent from a sender equipment side into an image signal S18 having a scanning density beta, and consists of a main circuit 7, a conversion operation control circuit 8 and a dividing operation control circuit 9. The main circuit 7 converts once the image signal S1 into an analog signal, which is subjected to V/F conversion, the result is subjected to time-division integration in response to the ratio of the scanning density alpha to the scanning density beta, and each picture element information of the image signal S18 is generated from the result of each integration. The conversion operation control circuit 8 controls the density conversion of the said main circuit 7.
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Inventors:
YOKONO MASATOSHI
Application Number:
JP2437786A
Publication Date:
August 11, 1987
Filing Date:
February 06, 1986
Export Citation:
Assignee:
MATSUSHITA GRAPHIC COMMUNIC
International Classes:
G06T3/40; H04N1/40; H04N1/387; (IPC1-7): H04N1/387; H04N1/40
Domestic Patent References:
| JPS57138262A | 1982-08-26 |
Attorney, Agent or Firm:
Akira Kobiji (2 outside)
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