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1.发明公开COMMON ELECTRODE DRIVING DEVICE IN A LIQUID CRYSTAL DISPLAY 失效Steuervorrichtungfürgemeinsame Elektrode在einerFlüssigkristallanzeige
公开(公告)号：EP0834763A4
公开(公告)日：1999-03-31
申请号：EP95918773
申请日：1995-05-23
Applicant: IBM
Inventor： KOBAYASHI YOSHINAO , KURODA AKIHIRO , SEKIYA KAZUO
CPC classification number: G09G3/3655 , G09G3/3614 , G09G2330/023 , G09G2330/024
Abstract: A common electrode driving device comprising a first driver for driving such that the voltage of the common electrode of a liquid crystal display panel is maintained at a predetermined level every time a horizontal scanning is carried out, an electric charge storage capacitance having a capacitance larger than a capacitance as a common electrode capacitance, an inductance for constituting a resonance circuit, switching means for switching the resonance circuit such that it operates for a predetermined period of time, and a second driver for charging to the electric charge storage capacitance electric charge to make up for the shortage. Since an amount to be driven by the first driver is decreased due to the electric charge storage capacitance and since the second driver excessively charges electric charge to the electric charge storage capacitance, it is possible to change the voltage of the common electrode to a desired level more quickly.
Abstract translation: 用于驱动液晶显示面板的公共电极的驱动器包括用于驱动公共电极以在每个水平扫描周期保持预定电压的第一驱动器，具有大于公共电极的容量的电容的电荷保持电容作为电容 用于构成谐振电路的电感，用于在公共电极的电压改变时将预定周期操作的谐振电路切换的开关装置和用于将不充足的电荷放入电荷保持电容的第二驱动器。 由于电荷保持电容，第一驱动器的驱动减少。 第二驱动器将剩余电荷放入电荷保持电容中，使得公共电极的电压可以更快地改变为期望的电压。
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公开(公告)号：DE68921123D1
公开(公告)日：1995-03-23
申请号：DE68921123
申请日：1989-08-08
Applicant: IBM
Inventor： SEKIYA KAZUO , SHIRAISHI YUICHI
Abstract: A display system for converting first gray level signal of N bits (N is integer larger than or equal to 2) representing 2 gray levels to second gray level signal representing 2 gray levels (M is integer satisfying N>M>/=1) : said display system comprising: means for separating said first gray level signal of N bits into higher M bits and lower N-M bits; 2 tables each of which stores P x Q modification values satisfying P x Q >/= 2 ; means for selecting one of said tables by using said NM bits; means for adding said M bits and each of modification values of said selected table to generate P x Q second gray level signals; and means for supplying said second gray level signals to a display device of 2 gray levels.
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公开(公告)号：CA2082118A1
公开(公告)日：1993-07-21
申请号：CA2082118
申请日：1992-11-04
Applicant: IBM
Inventor： LIEN YEONG-CHANG , SONE HIRONAO , SEKIYA KAZUO , KANADA YOSHIHISA
Abstract: A computer system is provided which allows adapters 2 to be inserted or removed while keeping the system operational, and which can automatically reconfigure the system according to insertion or removal of the adapters 2. When an adapter 2 is inserted, an adapter detection mechanism 11 informs a resource manager 19 of the insertion of the adapter 2 with an interrupt or the like. The resource manager 19 electrically and mechanically connects the adapter 2 immediately after its insertion, and reads the attribute information of the adapter 2 from a memory on the adapter 2 to perform the necessary setup, inclusion of the device driver necessary for the system, and assignment of memory and the like, thus enabling the adapter 2. When a user wants to remove an adapter, he or she issues an adapter removal request from an adapter removal button 12, or a keyboard, etc to the resource manager 19. This request is transmitted to the resource manager 19, which checks the running state of the adapter 2, and, if it can be removed, electrically and then mechanically disconnects it so that it can be removed. The user of the computer system removes the adapter 2 after it is disconnected.
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公开(公告)号：CA2082118C
公开(公告)日：1999-01-19
申请号：CA2082118
申请日：1992-11-04
Applicant: IBM
Inventor： LIEN YEONG-CHANG , SONE HIRONAO , SEKIYA KAZUO , KANADA YOSHIHISA
Abstract: A computer system is provided which allows adapters to be inserted or removed while keeping the system operational, and which can automatically reconfigure the system according to such insertion or removal. When an adapter is inserted, an adapter detection mechanism informs a resource manager of the insertion of the adapter with an interrupt or the like. The resource manager electrically and mechanically connects the adapter immediately after its insertion, and reads the attribute information of the adapter from a memory on the adapter to perform the necessary setup, inclusion of the device driver necessary for the system, and assignment of memory and the like, thus enabling the adapter. When a user wants to remove an adapter, he or she issues an adapter removal request from an adapter removal button, or from a program to the resource manager. This request is transmitted to the resource manager, which checks the running state of the adapter, and, if it can be removed, electrically and then mechanically disconnects it so that it can be removed. The user of the computer system removes the adapter after it is disconnected.
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公开(公告)号：GB2223149A
公开(公告)日：1990-03-28
申请号：GB8913015
申请日：1989-06-06
Applicant: IBM
Inventor： SEKIYA KAZUO , SHIRAISHI YUICHI
Abstract: A display system for converting first gray level signal of N bits (N is integer larger than or equal to 2) representing 2 gray levels to second gray level signal representing 2 gray levels (M is integer satisfying N>M>/=1) : said display system comprising: means for separating said first gray level signal of N bits into higher M bits and lower N-M bits; 2 tables each of which stores P x Q modification values satisfying P x Q >/= 2 ; means for selecting one of said tables by using said NM bits; means for adding said M bits and each of modification values of said selected table to generate P x Q second gray level signals; and means for supplying said second gray level signals to a display device of 2 gray levels.
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Patent Agency Ranking
公开(公告)号：DE69330533D1
公开(公告)日：2001-09-13
申请号：DE69330533
申请日：1993-01-08
Applicant: IBM
Inventor： YEONG-CHANG LIEN , SONE HIRONAO , SEKIYA KAZUO , KANADA YOSHIHISA
Abstract: A computer system is provided which allows adapters 2 to be inserted or removed while keeping the system operational, and which can automatically reconfigure the system according to insertion or removal of the adapters 2. When an adapter 2 is inserted, an adapter detection mechanism 11 informs a resource manager 19 of the insertion of the adapter 2 with an interrupt or the like. The resource manager 19 electrically and mechanically connects the adapter 2 immediately after its insertion, and reads the attribute information of the adapter 2 from a memory on the adapter 2 to perform the necessary setup, inclusion of the device driver necessary for the system, and assignment of memory and the like, thus enabling the adapter 2. When a user wants to remove an adapter, he or she issues an adapter removal request from an adapter removal button 12, or a keyboard, etc to the resource manager 19. This request is transmitted to the resource manager 19, which checks the running state of the adapter 2, and, if it can be removed, electrically and then mechanically disconnects it so that it can be removed. The user of the computer system removes the adapter 2 after it is disconnected.
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公开(公告)号：DE69522014T2
公开(公告)日：2002-04-18
申请号：DE69522014
申请日：1995-05-23
Applicant: IBM
Inventor： KOBAYASHI YOSHINAO , KURODA AKIHIRO , SEKIYA KAZUO
Abstract: A driver for driving a common electrode of a liquid crystal display panel comprises a first driver for driving the common electrode to hold a predetermined voltage every horizontal scan period, a charge hold capacitance having a capacity bigger than a capacity of the common electrode as a capacitance, an inductance for constructing a resonance circuit, switch means for switching to operate the resonance circuit for a predetermined period when the voltage of the common electrode is changed, and a second driver for putting insufficient charges into the charge hold capacitance. The driving by the first driver is reduced because of the charge hold capacitance. The second driver puts surplus charges into the charge hold capacitance so that the voltage of the common electrode can be more quickly changed to a desired voltage.
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公开(公告)号：DE69330533T2
公开(公告)日：2002-04-18
申请号：DE69330533
申请日：1993-01-08
Applicant: IBM
Inventor： YEONG-CHANG LIEN , SONE HIRONAO , SEKIYA KAZUO , KANADA YOSHIHISA
Abstract: A computer system is provided which allows adapters 2 to be inserted or removed while keeping the system operational, and which can automatically reconfigure the system according to insertion or removal of the adapters 2. When an adapter 2 is inserted, an adapter detection mechanism 11 informs a resource manager 19 of the insertion of the adapter 2 with an interrupt or the like. The resource manager 19 electrically and mechanically connects the adapter 2 immediately after its insertion, and reads the attribute information of the adapter 2 from a memory on the adapter 2 to perform the necessary setup, inclusion of the device driver necessary for the system, and assignment of memory and the like, thus enabling the adapter 2. When a user wants to remove an adapter, he or she issues an adapter removal request from an adapter removal button 12, or a keyboard, etc to the resource manager 19. This request is transmitted to the resource manager 19, which checks the running state of the adapter 2, and, if it can be removed, electrically and then mechanically disconnects it so that it can be removed. The user of the computer system removes the adapter 2 after it is disconnected.
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公开(公告)号：DE69522014D1
公开(公告)日：2001-09-06
申请号：DE69522014
申请日：1995-05-23
Applicant: IBM
Inventor： KOBAYASHI YOSHINAO , KURODA AKIHIRO , SEKIYA KAZUO
Abstract: A driver for driving a common electrode of a liquid crystal display panel comprises a first driver for driving the common electrode to hold a predetermined voltage every horizontal scan period, a charge hold capacitance having a capacity bigger than a capacity of the common electrode as a capacitance, an inductance for constructing a resonance circuit, switch means for switching to operate the resonance circuit for a predetermined period when the voltage of the common electrode is changed, and a second driver for putting insufficient charges into the charge hold capacitance. The driving by the first driver is reduced because of the charge hold capacitance. The second driver puts surplus charges into the charge hold capacitance so that the voltage of the common electrode can be more quickly changed to a desired voltage.
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公开(公告)号：JPH0635850A
公开(公告)日：1994-02-10
申请号：JP16300792
申请日：1992-06-22
Applicant: IBM
Inventor： SEKIYA KAZUO , SONE HIROHISA , ISHIKAWA HIROSHI , KANEDA YOSHIHISA
IPC: G06F13/368 , G06F13/36 , G06F13/40
Abstract: PURPOSE: To extend a computer system where a local arbiter requesting bus sue gives the priority of respective bus user rights to a common arbitration bus through an open collector-type driving part and a winner is decided through a channel different from a bus signal line. CONSTITUTION: Substitution mechanisms 73 and 79 which substitute the priority of the other buses and have the functions of the local arbiters are provided in first and second systems connected through the channel in a signal transmission form different from the signal transmission form on the bus. In the buses of the first and second systems, arbitration is executed and the winners are decided. The priority of the winners is reported to the substitution mechanisms of the other buses through the channel as the priority of the pertinent buses. The winners of the arbitration of the pertinent buses in the buses and the substitution mechanisms substituting the priority of the other buses execute arbitration again after the notice and the final winner is decided.
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