Title (en)

IMAGE STORAGE AND RETRIEVAL APPARATUS

Publication

EP 0398875 A4 19920902 (EN)

Application

EP 88906497 A 19880629

Priority

US 8802224 W 19880629

Abstract (en)

[origin: WO9000337A1] There is disclosed a still image storage and retrieval apparatus that is capable of storing and retrieving a large number of images from a magnetic disk storage medium (12, 44). The apparatus uses a color under recording format, and the disk speed is synchronized to the video sync signal. The recording and playback signals (64, 66, 68, 70) are time base compensated to offset the effect of jitter in the disk speed by using reference frequencies (46) from the disk drive (18) to down-convert and up-convert the color signal. In another embodiment a reference signal from the disk (12, 14) is used to modulate the color signals. In another embodiment a digital ''wall along'' memory (420) stores time base error information during recording for time base error correction during playback. A one image memory (602) is also provided to allow for transition between images during playback.

IPC 1-7

H04N 9/83; H04N 9/89; G11B 19/28; G11B 27/10

IPC 8 full level

G11B 19/28 (2006.01); G11B 27/029 (2006.01); G11B 27/10 (2006.01); G11B 27/11 (2006.01); H04N 1/21 (2006.01); H04N 1/64 (2006.01); H04N 9/797 (2006.01); H04N 9/83 (2006.01); H04N 9/89 (2006.01)

CPC (source: EP)

G11B 19/28 (2013.01); G11B 27/029 (2013.01); G11B 27/105 (2013.01); G11B 27/11 (2013.01); H04N 1/2175 (2013.01); H04N 1/646 (2013.01); H04N 9/7973 (2013.01); H04N 9/83 (2013.01); H04N 9/89 (2013.01); G11B 2220/20 (2013.01); G11B 2220/65 (2013.01)

Citation (search report)

• [Y] EP 0073152 A2 19830302 - SONY CORP [JP]
• [Y] US 4131912 A 19781226 - HIRAI JUN
• [A] EP 0253192 A2 19880120 - FUJI PHOTO FILM CO LTD [JP]
• [A] EP 0271869 A1 19880622 - CASIO COMPUTER CO LTD [JP]
• [A] US 4577240 A 19860318 - HEDBERG DAVID J [US], et al
• [Y] PATENT ABSTRACTS OF JAPAN, vol. 8, no. 194 (E-264), 6th September 1984; & JP-A-59 083 490 (SONY K.K.) 14-05-1984
• See references of WO 9000337A1

Designated contracting state (EPC)

BE CH DE FR GB IT LI NL

DOCDB simple family (publication)

WO 9000337 A1 19900111; BR 8807909 A 19910402; EP 0398875 A1 19901128; EP 0398875 A4 19920902

DOCDB simple family (application)

US 8802224 W 19880629; BR 8807909 A 19880629; EP 88906497 A 19880629