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    • 2. 发明授权
    • Gradative driving apparatus of liquid crystal display panel
    • 液晶显示面板的分级驱动装置
    • US5696524A
    • 1997-12-09
    • US437500
    • 1995-05-09
    • Masafumi HoshinoHiroyuki FujitaHirotomo OniwaFujio MatsuShuhei Yamamoto
    • Masafumi HoshinoHiroyuki FujitaHirotomo OniwaFujio MatsuShuhei Yamamoto
    • G02F1/133G09G3/20G09G3/36
    • G09G3/3625G09G2310/0208G09G3/2014G09G3/2018
    • A display device includes a vertical driver for applying to row electrodes a set of row signals represented by a set of orthogonal functions supplied by an orthogonal function generator at each selection period by group-sequential scanning within one frame. A dot product processor successively carries out a dot product computation between the set of orthogonal functions and a set of pixel data. A horizontal driver applies to column electrodes column signals having voltage levels determined by the results of the dot product computation at each selection period in synchronization with the group-sequential scanning. A frame memory stores the pixel data for each frame in divided bit form. The dot product processor reads out the set of stored pixel data in divided bit form and executes the dot product computation to produce a column signal component for each respective bit. The horizontal driver arranges a plurality of column signal components corresponding to the respective bits subjected to either pulse modulation or frame-rate modulation within one frame period to produce the column signal that is applied to the column electrodes. A memory controller controls the writing of the pixel data into the frame memory. Bit data subjected to the pulse modulation are written to the frame memory for every frame, while bit data subjected to frame-rate modulation are selectively written to the frame memory only at frames specified by the frame-rate modulation.
    • 显示装置包括垂直驱动器,用于在一个帧内通过组顺序扫描在每个选择周期向行电极施加一组由正交函数发生器提供的正交函数表示的行信号。 点积处理器依次在正交函数集合和一组像素数据之间执行点积计算。 横向驱动器适用于具有由组顺序扫描同步的每个选择周期的点积计算结果确定的电压电平的列电极列信号。 帧存储器以分割位形式存储每帧的像素数据。 点积处理器以分割位形式读出存储的像素数据集,并执行点积计算,以产生每个相应位的列信号分量。 水平驱动器在一个帧周期内配置对应于经过脉冲调制或帧速率调制的各个比特的多个列信号分量,以产生施加到列电极的​​列信号。 存储器控制器控制将像素数据写入帧存储器。 经过脉冲调制的位数据被写入每帧的帧存储器,而经帧速率调制的位数据仅在由帧速率调制指定的帧中选择性地写入帧存储器。
    • 3. 发明授权
    • Liquid crystal display panel driving device
    • 液晶显示面板驱动装置
    • US5619224A
    • 1997-04-08
    • US366419
    • 1994-12-27
    • Masafumi HoshinoShuhei YamamotoHiroyuki FujitaHirotomo OniwaTeruo EbiharaFujio Matsu
    • Masafumi HoshinoShuhei YamamotoHiroyuki FujitaHirotomo OniwaTeruo EbiharaFujio Matsu
    • G02F1/133G09G3/20G09G3/36
    • G09G3/3625G09G2310/0208G09G3/2014
    • In order to prevent signal distortion using a multiple line selection driving technique when using pulse width modulation to achieve a half-tone display in a liquid crystal display panel, respective bits of column signals are arranged in a descending pulse width order and a voltage generating circuit is used to lower level differences in adjacent bits. An orthonormal function generating circuit generates a plurality of row signals to drive a group of row electrodes through a vertical driver. A dot product computation circuit computes a dot product of the orthonormal functions and pixel display data to generate a column signal in the above manner. A horizontal driver applies the column signal to a group of column electrodes. Pixel data is stored in a frame memory, each datum being represented by a series of bits corresponding to a gray scale. The dot product computation circuit divides the pixel data into the respective bits, and individually carries out the dot product computation for each bit. The horizontal driver arranges the column signal components in order of descending pulse width. A voltage level circuit lowers the voltage level between the column components to reduce distortion caused by the high switching speed between the components and the low response time of the liquid crystal material.
    • 为了在使用脉冲宽度调制来实现液晶显示面板中的半色调显示时,为了防止使用多行选择驱动技术的信号失真,列信号的各个位按照下降的脉冲宽度顺序排列,电压产生电路 用于降低相邻位的电平差。 正交函数发生电路产生多个行信号以通过垂直驱动器驱动一组行电极。 点积计算电路以上述方式计算正交函数和像素显示数据的积积以产生列信号。 水平驱动器将列信号施加到一组列电极。 像素数据存储在帧存储器中,每个数据由对应于灰度级的一系列位表示。 点积计算电路将像素数据分割成各个位,并且分别对每个位执行点积计算。 水平驱动器按照下降脉冲宽度的顺序排列列信号分量。 电压电平电路降低列组件之间的电压电平,以减少由组件之间的高切换速度引起的失真和液晶材料的低响应时间。
    • 6. 发明授权
    • Wireless communication apparatus having wireless communication functions conforming to incompatible communication standards
    • 具有符合不兼容通信标准的无线通信功能的无线通信装置
    • US08005504B2
    • 2011-08-23
    • US11560170
    • 2006-11-15
    • Eiichi SanoHiroyuki Fujita
    • Eiichi SanoHiroyuki Fujita
    • H04M1/00
    • H04W52/42H04B7/0602H04B7/0805H04B7/0825H04M2250/02H04M2250/06
    • A wireless communication apparatus is provided. The wireless communication apparatus includes wireless communication functions conforming to incompatible first and second communication standards. The wireless communication apparatus includes a first transceiver that performs a wireless communication operation conforming to the first communication standard and includes a first transmission/reception port, a second transceiver that performs a wireless communication operation conforming to the second communication standard and includes a second transmission/reception port, a shared antenna shared by the first and the second transceivers, an antenna connecting unit that connects the shared antenna and the first and the second transmission/reception ports, and a control unit that controls the communication operations in the first and the second transceivers.
    • 提供一种无线通信装置。 无线通信装置包括符合不兼容的第一和第二通信标准的无线通信功能。 无线通信装置包括执行符合第一通信标准的无线通信操作的第一收发器,并且包括第一发送/接收端口,执行符合第二通信标准的无线通信操作的第二收发器,并且包括第二发送/ 接收端口,由第一和第二收发器共享的共享天线,连接共享天线与第一和第二发送/接收端口的天线连接单元,以及控制单元,其控制第一和第二收发器中的通信操作 收发器