公开(公告)号：JPH03160494A

公开(公告)日：1991-07-10

申请号：JP29139989

申请日：1989-11-10

Applicant: IBM

Inventor： MORI MASAYA ,  MORIMOTO YUTAKA

IPC: G06F3/153 ,  G06F1/08 ,  G09G1/16 ,  G09G1/28 ,  G09G5/00 ,  G09G5/04

Abstract: PURPOSE: To supply data signals and control signals to a data display means without the need of the switching operation of a switch kind by an operator by providing an identification signal generation means in the data display means and providing a frequency decision means for making a decision corresponding to identification signals in a data processing means. CONSTITUTION: When a first CRT monitor 1 is connected through a cable 3 to the data processing means 5, the identification signals for which a bit pattern is '1' are supplied to the data processing means 5 and RGB signals (video signals) as the data signals and H-SYNC signals (horizontal synchronizing signals) and V-SYNC signals (vertical synchronizing signals) as the control signals are supplied to the first CRT monitor 1. The data processing means 5 is provided with the frequency decision means 11, the frequency of the data signals and the control signals to be transferred is decided corresponding to the identification signals and the data signals and the control signals are supplied to the CRT 1 by the frequency decided by the frequency decision means 11. Thus, without the need of the switching operation of the switch kind by the operator, the data signals and the control signals are supplied from the data processing means to the data display means.

公开(公告)号：JPS61261779A

公开(公告)日：1986-11-19

申请号：JP10067285

申请日：1985-05-14

Applicant: IBM

Inventor： IIDA HIDEAKI ,  MAMIYA TAKESHIGE ,  MORIMOTO YUTAKA

IPC: G06F3/153 ,  G06T11/20 ,  G09G1/08 ,  G09G1/10 ,  G09G5/20

Abstract: Assuming that a given equation representing a quadratic curve is:the method for generating quadratic curve signals disclosed herein repeatedly selects a point close to F (x, y) = 0 in only one of either the region of F (x, y) ≧ 0 or the region of F (x, y)