Information processing apparatus and display system

Claim 2

An information processing apparatus according to claim 1, wherein said graphics event is an event requesting font display, and further comprising means for designating the position coordinate of said graphics event based on the last line of said font.

Claim 3

An information processing apparatus comprising: a) an image information memory for storing image information; b) first means for controlling the start of storage of image information associated with a generated graphics event into said memory, with reference to the position coordinate of said graphics event; c) second means for controlling the storage of the image information associated with a generated graphics event into said memory at a constant interval; and d) third means for effecting control in such a manner that the image information associated with a first graphics event is stored by said second means into said memory when a second graphics event is generated, but otherwise the image information associated with the first graphics event is stored by said first means into said memory.

Claim 4

An information processing apparatus according to claim 3, wherein said first graphics event is an event associated with a display request from a pointing device or a keyboard input, and said second graphics event is an event requesting scroll display in a window.

Claim 5

An information processing apparatus according to claim 3, wherein the position coordinate of said first graphics event is designated based on the last line of font.

Claim 6

An information processing apparatus comprising: a) an image information memory for storing image information; b) first means for designating the position coordinate of a graphics event on said memory; c) second means for setting a count increment at every output of information corresponding to a scanning line; d) third means for clearing said count at the output of information corresponding to a predetermined scanning line in a vertical scanning; e) fourth means for cleaning said count when it reaches a predetermined value; and f) fifth means for switching said third and fourth means.

Claim 7

An information processing apparatus according to claim 6, wherein said predetermined scanning line is the last scanning line in the vertical scanning.

Claim 8

An information processing apparatus according to claim 6, wherein said graphics event is an event request font display.

Claim 9

An information processing apparatus according to claim 6, wherein the position coordinate of said graphics event is designated based on the last line of font.

Claim 10

An information processing apparatus comprising: a) an image information memory for storing image information; b) first means for designating the position coordinate of a graphics event on said memory; c) second means for setting a count increment at every output of information corresponding to a scanning line; and d) third means for effecting control in such a manner as to store the image information associated with a first graphics event into said memory in response to a predetermined count when a second graphics event is generated, or, otherwise to store the image information associated with the first graphics event when the count reaches a value predetermined with reference to the designated position coordinate.

Claim 11

An information processing apparatus according to claim 10, wherein said first graphics event is an event associated with a display request from a pointing device or a keyboard input, and second graphics event is an event requesting scroll display in a window.

Claim 12

An information processing apparatus according to claim 10, wherein the position coordinate of said first graphics event is designated based on the last line of font.

Claim 13

A display system comprising: a) matrix electrodes composed of scanning lines and information lines; b) drive means for driving said matrix electrodes; c) drive control means for controlling said drive means; and d) graphics control means having image information memory for storing image information; first control means for controlling the start of storage of image information associated with a generated graphics event into said memory with reference to the position coordinate of said braphics event; and second control means for controlling the storage of the image information associated with a generated graphics event at a constant interval; and controlling said memory by the first or second control means designated in response to the generation of a graphics event different from the first-mentioned graphics event, thereby transferring the image information stored in said memory to the drive control means.

Claim 14

A display system according to claim 13, wherein said graphics control means comprises means for controlling the drive control means in such a manner that the scanning lines corresponding to the image information alone are scanned.

Claim 15

A display system according to claim 13, wherein said graphics event is an event requesting font display, and further comprising means for designating the position coordinate of the graphics event, based on the last line of said font.

Claim 16

A display system according to claim 13, comprising liquid crystal between said scanning lines and said information lines.

Claim 17

A display system according to claim 16, wherein said liquid crystal is ferroelectric liquid crystal.

Claim 18

A display system comprising: a) matrix electrodes composed of scanning lines and information lines; b) drive means for driving said matrix electrodes; c) drive control means for controlling said drive means; and d) graphics control means having image information memory for storing image information; first control means for controlling the start of storage of image information associated with a generated first graphics event into said memory with reference to the position coordinate of said first graphics event; and second control means for controlling the storage of the image information associated with the generated first graphics event into said memory at a constant interval; effecting control in such a manner as to store the image information associated with the first graphics event by the second control means into said memory when a second graphics event is generated, or otherwise store the image information associated with the first graphics event by the first means into said memory, and further effecting control so as to transfer the image information stored in said memory to the drive control means.

Claim 19

A display system according to claim 18, wherein said first graphics event is an event associated with a display request from a pointing device or a keyboard input, and said second graphics event is an event requesting scroll display in a window.

Claim 20

A display system according to claim 18, wherein the position coordinate of said first graphics event is designated based on the last line of font.

Claim 21

A display system according to claim 18, wherein said graphics control means comprises means for controlling the drive control means in such a manner that the scanning lines corresponding to the image information alone are scanned.

Claim 22

A display system according to claim 18, further comprising liquid crystal between said scanning lines and said information lines.

Claim 23

A display system according to claim 22, wherein said liquid crystal is ferroelectric liquid crystal.

Claim 24

A display system comprising: a) matrix electrodes composed of scanning lines and information lines; b) drive means for driving said matrix electrodes; c) drive control means for controlling said drive means; and d) graphics control means having an image information memory for storing image information, effecting control in such a manner as to designate the position coordinate of a graphics event on said memory, to set a count to be increased at every output of information corresponding to a scanning line, to clear said count in response to the output of information corresponding to a predetermined scanning line, and to clear said count at a constant interval in response to the generation of a graphics event different from the first-mentioned graphics event, and further effecting control so as to transfer the image information stored in said memory to the drive control means.

Claim 25

A display system according to claim 24, wherein said graphics control means comprises means for controlling the drive control means in such a manner that the scanning lines corresponding to the image information alone are scanned.

Claim 26

A display system according to claim 24, wherein said graphics event is an event requesting font display, and the position coordinate of the graphics event is designated based on the last line of said font.

Claim 27

A display system according to claim 24, further comprising liquid crystal between said scanning lines and said information lines.

Claim 28

A display system according to claim 27, wherein said liquid crystal is ferroelectric liquid crystal.

Claim 29

A display system according to claim 24, wherein said predetermined scanning line is the last scanning line in a vertical scanning.

Claim 30

A display system comprising: a) matrix electrodes composed of scanning lines and information lines; b) drive means for driving said matrix electrodes; c) drive control means for controlling said drive means; and d) graphics control means having an image information memory for storing image information, effecting control in such a manner as to designate the position coordinate of a first graphics event on said memory, to set a count to be increased at every output of information corresponding to a scanning line, to store the image information associated with said first graphics event into said memory when said count coincides with the designated position coordinate, to clear said count in response to the output of information corresponding to a predetermined scanning line, and to clear said count at a constant interval in response to the generation of a second graphics event different from said first graphics event, storing the image information associated with said first graphics event into said memory when said count is cleared, and further effecting control in such a manner as to transfer the image information stored in said memory to said drive control means.

Claim 31

A display system according to claim 30, wherein said first graphics event is an event associated with a display request from a pointing device or a keyboard input, and said second graphics event is an event requesting scroll display in a window.

Claim 32

A display system according to claim 30, wherein said graphics control means comprises means for controlling the drive control means in such a manner that the scanning lines corresponding to the image information alone are scanned.

Claim 33

A display system according to claim 30, further comprising liquid crystal between said scanning lines and said information lines.

Claim 34

A display system according to claim 33, wherein said liquid crystal is ferroelectric liquid crystal.

Claim 35

A display system according to claim 30, wherein said predetermined scanning line is the last scanning line in a vertical scanning.