Appeal No. 1996-2384 Application 08/226,225 (e.g., as S , S , S ) according to the teaching level of the1-0 1-1 1-2 students (col. 2, lines 33-39). As shown in Figure 3, recording medium consists of video tape 1 having recording tracks 15 with respective track addresses 16 (col. 3, lines 3- 8). Figure 5 shows the recording format for various fields (col. 3, lines 59-60), each of which is recorded in a respective track. The track address, which is recorded in horizontal lines 12-14 of each track (col. 3, lines 59-65), consists of 21 bits and is sufficient to address tracks of a video tapes of about 10 hours in length (col. 4, lines 2-5). Each 128-byte segment of program code is recorded during horizontal lines 64-191 of in three adjacent fields (col. 4, lines 61-62). This is also depicted by Figure 6, wherein a "program block" P (apparently n corresponding one of the programs P to P of Figure 1)1 3 includes a plurality of program segments P -P , each of which 1 m is recorded in three adjacent tracks identified as 00, 01, and 02 (col. 5, lines 7-18). Referring to Figure 5, these track identification codes 00, 01, and 02 are recorded during horizontal line 58 (col. 4, line 48-52). Turning now to Figure 7, identical copies P ' and P " of program block P aren n n - 4 -Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 NextLast modified: November 3, 2007