[54] INFORMATION RECORDING MEDIUM
HAVING A PLURALITY OF INFORMATION
TRACKS ARRANGED IN A
PREDETERMINED RECTILINEAR
DIRECTION
[75] Inventors: Hiroaki Hoshi, Isehara; Kiyonobu
Endo, Yokohama, both of Japan
[73] Assignee: Canon Kabushiki Kaisha, Tokyo,
Japan
[21] Appl. No.: 726,734
[22] Filed: Jul. 2,1991
Related U.S. Application Data
[63] Continuation of Ser. No. 453,165, Dec. 12, 1989, abandoned, which is a continuation of Ser. No. 940,531, Dec. 10, 1986, abandoned.
[30] Foreign Application Priority Data
Dec. 11, 1985 [JP] Japan 60-276697
Dec. 11, 1985 [JP] Japan 60-276700
Dec. 13, 1985 [JP] Japan 60-279334
[51] Int. C1.5 G06K 19/06; Gl IB 7/013
[52] U.S. CI 369/275.3; 235/494;
235/454
[58] Field of Search 235/454, 456, 462, 470,
235/487, 488, 494, 461, 471, 436; 369/275.3, 48, 59, 47, 54, 58, 44.26; 365/234; 358/342
[56] References Cited
U.S. PATENT DOCUMENTS
4,094,010 6/1978 Pepperl et al 369/47
c
20
\ >
4,229,808 10/1980 Hui 365/234
4,254,329 3/1981 Gokey et al 235/454
4,289,957 9/1981 Neyroud et al 235/454
4,494,226 1/1985 Hazel et al 369/54
4,534,031 8/1985 Jewer 369/97
4,562,577 12/1985 Glover et al 369/54
4,634,850 1/1987 Pierce et al 235/462
4,652,730 3/1987 Marshall 369/47
4,791,622 12/1988 Clay et al 369/59
4,982,075 1/1991 Aoki et al 235/494
4,982,077 1/1991 Kawamura 235/494
FOREIGN PATENT DOCUMENTS
0146257 6/1985 European Pat. Off. .
61-82286 4/1986 Japan .
Primary Examiner—Robert A. Weinhardt
Attorney, Agent, or Firm—Fitzpatrick, Cella, Harper
and Scinto
[57] ABSTRACT
In an information recording medium, there are provided with plural information track groups each provided with plural information tracks, and identification areas respectively formed in the plural information track groups and having codes respectively indicating the information track groups. An information reproducing process, for reproducing the information from the information reproducing medium, comprises the steps of detecting a code of the identification area indicating a desired information track group, and reproducing the information stored in the information track group, in response to the result of the detecting step.
16 Claims, 9 Drawing Sheets
