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    • 3. 发明授权
    • Video display control system for moving display images
    • 用于移动显示图像的视频显示控制系统
    • US4897636A
    • 1990-01-30
    • US139170
    • 1987-12-21
    • Kazuhiko NishiTakatoshi IshiiRyozo YamashitaShigemitsu YamaokaTakatoshi OkumuraMinoru Morimoto
    • Kazuhiko NishiTakatoshi IshiiRyozo YamashitaShigemitsu YamaokaTakatoshi OkumuraMinoru Morimoto
    • G06T1/60G09G5/02G09G5/393
    • G09G5/393G06T1/60G09G5/026
    • A video display control system is capable of moving a part of a still image from a first display area to a second display area on a screen. The video display control system includes a memory composed of a plurality of memory locations for storing a plurality of display data representative of images of display elements on the screen. First and second registers retain first and second area data representative of the first and second display areas, and an address data generator generates from these area data first and second address data, the first address data indicating memory locations which store display data corresponding to the first display area, the second address data indicating second memory locations which store display data corresponding to the second display area. A reading circuit reads the display data in the first memory locations in accordance with the first address data, while a writing circuit writes the read display data into the second memory locations in accordance with the second address data. This video display control system further includes another reading circuit and an operation circuit. This reading circuit reads the display data in the second memory locations and feeds the read display data to the operation circuit which effects an operation such as a logical operation or a transparency processing on each pair of the display data read from the first and second memory locations.
    • 视频显示控制系统能够将静止图像的一部分从第一显示区域移动到屏幕上的第二显示区域。 视频显示控制系统包括由多个存储位置组成的存储器,用于存储表示屏幕上显示元素的图像的多个显示数据。 第一和第二寄存器保持表示第一和第二显示区域的第一和第二区域数据,并且地址数据生成器从这些区域数据生成第一和第二地址数据,第一地址数据指示存储对应于第一和第二显示区域的显示数据的存储单元 显示区域,第二地址数据指示存储对应于第二显示区域的显示数据的第二存储单元。 读取电路根据第一地址数据读取第一存储器位置中的显示数据,而写入电路根据第二地址数据将读取的显示数据写入第二存储器位置。 该视频显示控制系统还包括另一读取电路和操作电路。 该读取电路读取第二存储器位置中的显示数据并将读取的显示数据馈送到对从第一和第二存储器位置读取的每对显示数据执行诸如逻辑操作或透明度处理的操作的操作电路 。
    • 4. 发明授权
    • Video display control system
    • 视频显示控制系统
    • US4731742A
    • 1988-03-15
    • US712253
    • 1985-03-15
    • Kazuhiko NishiTakatoshi IshiiRyozo YamashitaShigemitsu YamaokaTakatoshi OkumuraMinoru Morimoto
    • Kazuhiko NishiTakatoshi IshiiRyozo YamashitaShigemitsu YamaokaTakatoshi OkumuraMinoru Morimoto
    • G09G5/02G09G5/393G06F3/153
    • G09G5/393G09G5/02
    • A video display control system for displaying a video image on a screen of a video display unit. This video display control system basically comprises a VRAM (video RAM) and a video display processor (VDP). The VRAM has memory locations corresponding to display elements on the screen. The VDP includes a first register for receiving area information identifying a display area on the screen, an address generator for generating addresses of memory locations corresponding to the display area in accordance with the area information, and a memory accessing circuit for accessing the memory locations having the addresses. Therefore, the memory accessing operation through this VDP does not need a complicated support by a central processing unit. The VDP further comprises a second register for storing a color code supplied from an external device or read from the VRAM. Through this second register, the memory accessing circuit performs a memory accessing operation such as a transfer of color code between the external device and the VRAM, whereby color painting on a display area such as a rectangular area, dot and a line can easily be achieved. The VDP further comprises an operation circuit for effecting a certain operation on a color code in the second register and a color code in the VRAM and generating a new color code in accordance with the operation result. The operation-related color change on a display area can be achieved by storing the new color code in a corresponding memory location of the VRAM.
    • 一种用于在视频显示单元的屏幕上显示视频图像的视频显示控制系统。 该视频显示控制系统基本上包括VRAM(视频RAM)和视频显示处理器(VDP)。 VRAM具有与屏幕上的显示元素相对应的存储器位置。 VDP包括用于接收区域信息的第一寄存器,用于识别屏幕上的显示区域;地址发生器,用于根据区域信息产生对应于显示区域的存储位置的地址;以及存储器访问电路,用于访问具有 地址。 因此,通过该VDP的存储器访问操作不需要中央处理单元的复杂支持。 VDP还包括用于存储从外部设备提供或从VRAM读取的颜色代码的第二寄存器。 通过该第二寄存器,存储器访问电路执行存储器访问操作,例如外部设备和VRAM之间的颜色代码的传送,由此可以容易地实现诸如矩形区域,点和行的显示区域上的彩色绘画 。 VDP还包括用于对第二寄存器中的颜色代码进行某种操作的操作电路和VRAM中的颜色代码,并根据操作结果生成新的颜色代码。 可以通过将新的颜色代码存储在VRAM的对应的存储器位置中来实现显示区域上的与操作相关的颜色变化。
    • 6. 发明授权
    • Video display control system
    • 视频显示控制系统
    • US4804948A
    • 1989-02-14
    • US77984
    • 1987-07-27
    • Kazuhiko NishiTakatoshi IshiiRyozo YamashitaShigemitsu YamaokaTakatoshi Okumura
    • Kazuhiko NishiTakatoshi IshiiRyozo YamashitaShigemitsu YamaokaTakatoshi Okumura
    • G06F3/153G06T11/00G09G5/02G09G1/16
    • G09G5/026
    • A video display control system displays a video image composed of a plurality of display elements on a screen of a video display unit. The system comprises a memory (VRAM) for storing a plurality of color codes each representing at least one display element and a video display controller (VDP). The VDP comprises a mode register for selecting one of normal display and transparency processing modes, display processing circuit for reading the color codes from the VRAM, a backdrop color register for storing a color code such as one representing a backdrop color, a detection circuit for detecting a predetermined color code from the color codes read by the display processing circuit, and a selector controlled by an output of the detection circuit. In the normal display mode, the selector outputs all color codes read by the display processing circuit to the display unit. In the transparency processing mode, the selector outputs the color codes read by the display processing circuit to the display unit when the predetermined color code is not detected, and outputs the color code contained in the backdrop color register to the display unit when the predetermined color code is detected. The VDP further comprises another detection circuit for detecting a second predetermined color code from the color codes outputted from the selector to output a control signal. And if the second predetermined color code is detected in the transparency processing mode, the display unit displays an image in accordance with an external video signal.
    • 视频显示控制系统在视频显示单元的屏幕上显示由多个显示元件组成的视频图像。 该系统包括用于存储代表至少一个显示元件和视频显示控制器(VDP)的多个颜色代码的存储器(VRAM)。 VDP包括用于选择正常显示和透明度处理模式之一的模式寄存器,用于从VRAM读取颜色代码的显示处理电路,用于存储诸如表示背景颜色的颜色代码的颜色代码的背景颜色寄存器,用于 从由显示处理电路读取的颜色代码检测预定的颜色代码,以及由检测电路的输出控制的选择器。 在正常显示模式下,选择器将由显示处理电路读出的所有颜色代码输出到显示单元。 在透明度处理模式中,当未检测到预定颜色代码时,选择器将由显示处理电路读取的颜色代码输出到显示单元,并且当预定颜色在显示单元中输出包含在背景颜色寄存器中的颜色代码 检测到代码。 VDP还包括用于从从选择器输出的颜色代码中检测第二预定颜色代码以输出控制信号的另一个检测电路。 并且如果在透明度处理模式中检测到第二预定颜色代码,则显示单元根据外部视频信号显示图像。
    • 7. 发明授权
    • Video display processor
    • 视频显示处理器
    • US4660070A
    • 1987-04-21
    • US736828
    • 1985-05-22
    • Kazuhiko NishiTakatoshi IshiiRyozo YamashitaShigemitsu YamaokaTakatoshi Okumura
    • Kazuhiko NishiTakatoshi IshiiRyozo YamashitaShigemitsu YamaokaTakatoshi Okumura
    • G06F3/153G06F3/14G09G1/02G09G5/00G09G5/02G09G5/12G09G5/393H04N5/44
    • G09G5/393G09G5/02G09G5/12
    • A video display processor (VDP) for use with a central processing unit, a video RAM (VRAM) and a video display unit is capable of writing video image data supplied from an external video device such as a television set into the VRAM. The VDP comprises a first input terminal for receiving the external video image data and a second input terminal for receiving horizontal and vertical synchronization signals from the external video device. The VDP generates address data in accordance with the horizontal and vertical synchronization signals and supplies the address data to the VRAM when processing of the external video image data is designated. The VDP also supplies the received external video image data to the VRAM thereby to write the external video image data into addresses of the VRAM designated by the address data. The external video image data may be either color codes representative of colors of display elements of a video image displayed at the external video device or data representative of amplitude levels of an analog video signal outputted from the external video device.
    • 与中央处理单元,视频RAM(VRAM)和视频显示单元一起使用的视频显示处理器(VDP)能够将从诸如电视机的外部视频设备提供的视频图像数据写入到VRAM中。 VDP包括用于接收外部视频图像数据的第一输入端子和用于从外部视频装置接收水平和垂直同步信号的第二输入端子。 VDP根据水平和垂直同步信号产生地址数据,并且在指定外部视频图像数据的处理时将地址数据提供给VRAM。 VDP还将接收到的外部视频图像数据提供给VRAM,从而将外部视频图像数据写入由地址数据指定的VRAM的地址。 外部视频图像数据可以是表示在外部视频设备上显示的视频图像的显示元素的颜色的颜色代码或表示从外部视频设备输出的模拟视频信号的幅度电平的数据。
    • 8. 发明授权
    • Video display control system for animation pattern image
    • 视频显示控制系统,用于动画图案图像
    • US4864289A
    • 1989-09-05
    • US9095
    • 1987-01-23
    • Kazuhiko NishiTakatoshi IshiiRyozo YamashitaShigemitsu YamaokaTakatoshi Okumura
    • Kazuhiko NishiTakatoshi IshiiRyozo YamashitaShigemitsu YamaokaTakatoshi Okumura
    • G09G5/06G09G5/42
    • G09G5/42G09G5/06
    • A video display control system displays a multicolor animation pattern on a screen of a video display unit. The video display control system is mainly constructed by a video RAM (VRAM) and a video display processor (VDP). The VRAM stores animation pattern data, display position data and at least two color data. The VDP reads these data and makes an animation pattern image displayed in at least two colors at a display position on the screen. The animation pattern image, two colors and display position are determined by the animation pattern data, two color data and display position data. In another video display control system, the VRAM stores at least two sets of animation pattern data, display position data and color data. When displaying two animation patterns, the VDP effects a logical operation on the two color data with respect to the overlapping portion of the two patterns and makes the overlapping portion displayed in a new color corresponding to the operation result. When the animation patterns overlaps, the VDP can also deliver a collision signal in place of the logical operation, thereby enabling a CPU to recognize the position of the overlapping portion.
    • 视频显示控制系统在视频显示单元的屏幕上显示多色动画图案。 视频显示控制系统主要由视频RAM(VRAM)和视频显示处理器(VDP)构成。 VRAM存储动画图案数据,显示位置数据和至少两个颜色数据。 VDP读取这些数据,并使屏幕上的显示位置以至少两种颜色显示动画图案图像。 动画图案图像,两种颜色和显示位置由动画图案数据,两种颜色数据和显示位置数据确定。 在另一个视频显示控制系统中,VRAM存储至少两组动画图案数据,显示位置数据和颜色数据。 当显示两个动画图案时,VDP相对于两个图案的重叠部分对两个颜色数据进行逻辑运算,并使得重叠部分以对应于操作结果的新颜色显示。 当动画图案重叠时,VDP也可以传递碰撞信号代替逻辑操作,从而使CPU能够识别重叠部分的位置。
    • 10. 发明授权
    • Radiotelephone system that maintains synchronization between base and
subordinate units while shifting carrier frequencies
    • 无线电话系统,在移动载波频率的同时保持基站与下属单元之间的同步
    • US5133002A
    • 1992-07-21
    • US556335
    • 1990-07-20
    • Hajime KikuchiKazuhiko NishiYouichi Kawaguchi
    • Hajime KikuchiKazuhiko NishiYouichi Kawaguchi
    • H04M1/725
    • H04M1/72505
    • A radiotelephone system having a base unit and a plurality of subordinate units for carrying out radiocommunication between the base unit and the subordinate units. The base unit sends transmitting carriers to the subordinate units and gets receiving carriers from the subordinate units. The system includes a first frequency varying part for periodically shifting transmitting/receiving carrier frequencies of the base unit from a given frequency of one operating interval to another frequency of another operating interval. A first synchronizing signal part generates a synchronizing signal in synchronism with a time period determined from the shifting of the carrier frequencies. A second synchronizing signal part extracts a synchronizing signal from a receiving carrier signal received by each of the subordinate units. A second frequency varying part shifts receiving/transmitting carrier frequencies of each of the subordinate units from a frequency of one operating interval to another frequency of another operating interval in synchronism with a time period determined by the synchronizing signal extracted by the second synchronizing signal part.
    • 一种具有基本单元和多个从属单元的无线电话系统,用于在基本单元和从属单元之间执行无线电通信。 基站发送载波到下级单元,从下级单元接收载波。 该系统包括用于周期性地将基本单元的载波频率从一个操作间隔的给定频率周期性地移位到另一个操作间隔的另一个频率的第一频率变化部分。 第一同步信号部分与从载波频率的移位确定的时间周期同步地产生同步信号。 第二同步信号部分从由下属单元接收的接收载波信号中提取同步信号。 第二频率变化部分将每个下属单元的接收/发送载波频率从由第二同步信号部分提取的同步信号确定的时间周期同步地从一个操作间隔的频率转移到另一个操作间隔的另一个频率。