Information processing apparatus
    11.
    发明授权
    Information processing apparatus 失效
    信息处理装置

    公开(公告)号:US4809206A

    公开(公告)日:1989-02-28

    申请号:US87346

    申请日:1987-08-20

    CPC分类号: G06F7/5443

    摘要: This invention relates to an information processing apparatus such as a digital signal processor and is applied particularly suitably to a digital filter.A plurality of data from initial value data till final value data relating to filtering coefficients of a digital filter are stored in a data memory, and are sequentially read out by an increment operation of an address arithmetic unit.A data arithmetic unit executes sequentially product and/or sum operations of a plurality of data that are sequentially read out and digital input signals that are sequentially inputted, to perform digital signal processing.The information processing apparatus is equipped particularly with means, which when an access address starts from an initial value, exceeds a final value and reaches a return address due to the increment operation, returns automatically the access address to the initial value. Therefore, a plurality of data stored in the data memory can be utilized repeatedly.Contrivances are made in order to set the number of a plurality of data that are stored in the data memory for repetition of use, to an arbitrary value.

    摘要翻译: 本发明涉及诸如数字信号处理器的信息处理设备,并且特别适用于数字滤波器。 从初始值数据到与数字滤波器的滤波系数相关的最终值数据的多个数据被存储在数据存储器中,并且通过地址运算单元的增量操作被依次读出。 数据运算单元依次执行依次读出的多个数据和顺序输入的数字输入信号的乘积和/或和运算,进行数字信号处理。 该信息处理装置特别地具有如下装置:当访问地址从初始值开始时,由于增量操作而超过最终值并达到返回地址,自动将访问地址返回到初始值。 因此,可以重复使用存储在数据存储器中的多个数据。 为了将存储在用于重复使用的数据存储器中的多个数据的数量设置为任意值,进行了操作。

    Circuit for integrating analog signal and converting it into digital
signal
    13.
    发明授权
    Circuit for integrating analog signal and converting it into digital signal 失效
    用于集成模拟信号并将其转换为数字信号的电路

    公开(公告)号:US4562424A

    公开(公告)日:1985-12-31

    申请号:US517398

    申请日:1983-07-26

    CPC分类号: G01R21/133 G01R21/00

    摘要: An integrator circuit comprising reset means by which, when it is detected that an integrator output V.sub.p for an input analog signal coincides with a plus or minus reference value, the integral output is reset to the vicinity of the middle of the plus and minus reference values, in effect, without interrupting the integrating operation; a circuit which produces a pulse each time coincidence is detected; and a circuit which produces a direction signal indicating whether the coincidence results from an increase or a decrease of the integral input.The pulses produced in the state in which the direction signal is indicating an increase are counted up, and the pulses produced in the state in which the direction signal is indicating a decrease are counted down, whereby the precise integral value of the input analog signal can be detected.

    摘要翻译: 一种积分器电路,包括复位装置,当检测到输入模拟信号的积分器输出Vp与正或负参考值一致时,积分输出被复位到正和负参考值的中间附近 实际上不中断整合操作; 检测每次产生脉冲的电路; 以及产生指示由积分输入的增加或减少引起的一致性的方向信号的电路。 在方向信号指示增加的状态下产生的脉冲向上计数,并且在方向信号指示减小的状态下产生的脉冲向下计数,由此输入模拟信号的精确积分值 被检测。

    Electronic tuning type television receiver
    14.
    发明授权
    Electronic tuning type television receiver 失效
    电子调谐式电视接收机

    公开(公告)号:US4270220A

    公开(公告)日:1981-05-26

    申请号:US70817

    申请日:1979-08-29

    IPC分类号: H03J5/02 H04B1/26

    CPC分类号: H03J5/0263

    摘要: A television receiver of electronic tuning type employing a variable capacitance diode in a local oscillator of its tuning circuit, which comprises a memory storing a plurality of digital data indicative of tuning voltages corresponding to a plurality of channels respectively so that a tuning voltage corresponding to a selected channel can be applied to the variable capacitance diode in the tuning circuit, a D/A converter converting a digital data corresponding to a selected channel into an analog voltage to be supplied to the variable capacitance diode, and a tuning voltage control circuit which functions to sequentially modify, at a predetermined rate, the digital data of the selected channel read out from the memory until the tuning point is reached in the tuning circuit, and which applies sequentially such a signal to the D/A converter, whereby the tuning circuit can be tuned to the selected channel regardless of secular and other variations in the operating characteristic of the variable capacitance diode.

    摘要翻译: 一种在其调谐电路的本地振荡器中采用可变电容二极管的电子调谐型电视接收机,其包括分别存储表示与多个通道对应的调谐电压的多个数字数据的存储器,使得对应于 所选择的通道可以应用于调谐电路中的可变电容二极管,D / A转换器将对应于所选通道的数字数据转换为要提供给可变电容二极管的模拟电压,以及调谐电压控制电路,其功能 以预定速率顺序地修改从存储器读出的所选通道的数字数据,直到在调谐电路中达到调谐点,并且将该信号顺序地施加到D / A转换器,由此调谐电路 可以调谐到所选择的频道,而不管v的操作特性的长期和其他变化 可调电容二极管。

    Pulse width modulation circuit and integration circuit of analog product
using said modulation circuit
    19.
    发明授权
    Pulse width modulation circuit and integration circuit of analog product using said modulation circuit 失效
    使用所述调制电路的模拟产品的脉宽调制电路和积分电路

    公开(公告)号:US4577154A

    公开(公告)日:1986-03-18

    申请号:US517407

    申请日:1983-07-26

    CPC分类号: H03M1/82 H03K7/08

    摘要: A pulse width modulation circuit which can cancel the mean error of pulse width modulation with respect to time due to the offset voltage of a triangular wave signal and to the offset voltage of a comparator, by adding simple circuits to an existing pulse width modulation circuit. The invention relates also to an integration circuit of the product of two analog signals using the pulse width modulation circuit described above.The principle of the present invention combines a circuit for cancelling the offset of a triangular wave signal by inverting either the triangular wave signal with respect to an input signal or the input signal with respect to the triangular wave signal, in every predetermined period, with a circuit for eliminating the offset of a comparator by inverting the output of the comparator and replacing the input terminals of the comparator if the input signal is not inverted, or connecting the input terminal of the comparator as such if the input signal is inverted.

    摘要翻译: 一种脉冲宽度调制电路,通过将简单的电路加到现有的脉宽调制电路上,可以消除三角波信号的偏移电压和比较器的偏移电压相对于时间的脉冲宽度调制的平均误差。 本发明还涉及使用上述脉冲宽度调制电路的两个模拟信号的乘积的积分电路。 本发明的原理结合了用于消除三角波信号的偏移的电路,通过在每个预定周期内相对于三角波信号相对于输入信号或输入信号反转三角波信号, 电路,用于通过反相比较器的输出来消除比较器的偏移,并且如果输入信号不被反相则替换比较器的输入端,或者如果输入信号反相则连接比较器的输入端。

    Method for flexibly developing a data processing system comprising
rewriting instructions in non-volatile memory elements after function
check indicates failure of required functions
    20.
    发明授权
    Method for flexibly developing a data processing system comprising rewriting instructions in non-volatile memory elements after function check indicates failure of required functions 失效
    用于灵活地开发数据处理系统的方法,包括在功能检查之后重写非易失性存储器元件中的指令,指示所需功能的失败

    公开(公告)号:US5511211A

    公开(公告)日:1996-04-23

    申请号:US102156

    申请日:1993-08-04

    CPC分类号: G06F8/60 G06F15/7814 G06F9/24

    摘要: In developing the function of a data processing system using a semiconductor integrated circuit for data processing, comprising a non-volatile logical function block to which data is written electrically and a logical operation block utilizing the logical function block to execute the logic operation, data corresponding to the required specification and function of the system is written in the logical function block. Thereby, flexibility is obtained for setting and changing the required function to the semiconductor integrated circuit. The semiconductor integrated circuit also has an operation specification written to the logical block by a writing device designed to write to a non-volatile semiconductor storage device thereby improving the convenience of setting the functions required of the semiconductor integrated circuit.

    摘要翻译: 在开发使用半导体集成电路进行数据处理的数据处理系统的功能中,包括电子地写入数据的非易失性逻辑功能块和利用逻辑功能块执行逻辑运算的逻辑运算块,对应的数据 将系统的所需规格和功能写入逻辑功能块。 由此,可以获得将半导体集成电路所需的功能设定和变更的灵活性。 半导体集成电路还具有通过设计成写入非易失性半导体存储装置的写入装置写入逻辑块的操作规范,从而提高了设置半导体集成电路所需功能的便利性。