Appeal No. 2000-1289 Page 2 Application No. 08/604,829 device. When the processing of a prescribed amount of data is not completed in a certain time, however, reproduction of a resulting image or a sound is impeded. A high-speed magnetic storage device is required to solve this problem. The appellant’s invention switches between two memory groups having the same structure so that the two groups are used alternately. As shown in Figure 1 of the appellant’s specification, the first memory group (10) and the second memory group (11) each comprise a number of memory devices (101-106 and 111-116, respectively) equal to a number of magnetic disk communication means (4-9). A switch (12) enables connection between one of the first and second memory groups and the magnetic disk communications means and also between the other one of the memory groups and an external communication means (2). When the memory devices in one of the two memory groups communicate with the magnetic disks, the memory devices in the other group communicate with the external equipment, and vice versa. Such an arrangement permits parallel processing of data at a high speed.Page: Previous 1 2 3 4 5 6 7 8 9 10 11 12 NextLast modified: November 3, 2007