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    • 2. 发明授权
    • Apparatus for generating a modulated pulse signal
    • 用于产生调制脉冲信号的装置
    • US5477179A
    • 1995-12-19
    • US288495
    • 1994-08-10
    • Junichi TakadaTsuneo ImataniMasaki MorotomiAkihiko MorofujiKosaku Tsukimi
    • Junichi TakadaTsuneo ImataniMasaki MorotomiAkihiko MorofujiKosaku Tsukimi
    • B41F17/20B41J2/44G03G9/12G03G15/01G03G15/04G03G15/10G03G15/22H04N1/06H04N1/29H04N1/405H03K5/04H03K5/06
    • H04N1/4056G03G15/10H04N1/06H04N1/29
    • A device for printing an image onto a surface, such as food containers, employs a laser that is scanned across a surface to produce a latent image on a charged photosensitive surface formed on the surface. The surface is moved relative to the laser source while the laser is activated and deactivated according to a pattern of signal pulses from a control circuit. The device thus forms a raster image. To form very fine images, the control circuit must produce pulses with very small steps in duration. The control circuit of the present invention divides a digital value representing a duration of firing of the laser into high and low order bit sequences. The high order bits, representing a value M, are applied to a counter that generates a first pulse M clock cycles long. The low order bits and the first pulse are applied to a delay circuit. The delay circuit generates a delayed version of the first pulse, which is delayed by an amount represented by the low order bits. The first and second pulse signals are logically ORed to produce the control pulse for the laser.
    • 用于将图像打印到诸如食品容器的表面上的装置采用在表面上扫描的激光,以在形成在表面上的带电感光表面上产生潜像。 当激光器根据来自控制电路的信号脉冲的模式被激活和去激活时,表面相对于激光源移动。 因此,该装置形成光栅图像。 为了形成非常精细的图像,控制电路必须产生持续时间非常小的脉冲。 本发明的控制电路将表示激光的持续时间的数字值分为高位和低位位序列。 表示值M的高位被施加到产生第一脉冲M个时钟周期的计数器。 低位位和第一脉冲被施加到延迟电路。 延迟电路产生第一脉冲的延迟版本,其被延迟由低位位表示的量。 第一和第二脉冲信号被逻辑或运算以产生用于激光的控制脉冲。
    • 3. 发明授权
    • Radio communications apparatus
    • 无线通信装置
    • US06973136B2
    • 2005-12-06
    • US09893854
    • 2001-06-28
    • Noriharu KojimaHideki WatanabeYasunobu AkaokaJunichi Takada
    • Noriharu KojimaHideki WatanabeYasunobu AkaokaJunichi Takada
    • H04L27/20H03C3/09H03D7/16H03L7/16H04B1/04H04B1/40H04L27/36H04L23/02H04L5/12
    • H03C3/0966H03D7/165H03L7/16H03L2207/12H04B1/403
    • A phase comparator (106) compares a phase of the output signal of the quadrature modulator (104) with the phase of the signal obtained by frequency-converting the output signal of a first VCO (101) via the second VCO (102) and the first mixer (108). A PLL modulator includes a low-pass filter (107) filters a component below a predetermined frequency of the output signal of the phase comparator (106) and supplying the resulting signal to the frequency control terminal of the first VCO (101). The output signal (TS1) of the first VCO (101) is a modulated signal conforming to a modulation system having a constant envelope waveform, while the output signal of the quadrature modulator (104) is input to the first band-pass filter (110) and the output signal (TS2) of the first band-pass filter is a modulated signal conforming to a modulation system accompanied by an amplitude component as information.
    • 相位比较器(106)将正交调制器(104)的输出信号的相位与通过经由第二VCO(102)对第一VCO(101)的输出信号进行频率转换而获得的信号的相位进行比较, 第一混合器(108)。 PLL调制器包括低通滤波器(107)对低于相位比较器(106)的输出信号的预定频率的分量进行滤波,并将得到的信号提供给第一VCO(101)的频率控制端。 第一VCO(101)的输出信号(TS 1)是符合具有恒定包络波形的调制系统的调制信号,而正交调制器(104)的输出信号被输入到第一带通滤波器 110),并且第一带通滤波器的输出信号(TS 2)是符合作为信息的伴随振幅分量的调制系统的调制信号。
    • 5. 发明授权
    • Portable radio device
    • 便携式无线电设备
    • US06226537B1
    • 2001-05-01
    • US09193786
    • 1998-11-17
    • Yasuaki NamuraAtsushi TsuchidaJunichi TakadaHiroshi Ohnishi
    • Yasuaki NamuraAtsushi TsuchidaJunichi TakadaHiroshi Ohnishi
    • H04B138
    • H04W52/0209H03F2203/7227H03F2203/7239Y02D70/00
    • A portable radio device including a frequency synthesizer 5 for producing a local signal for radio section, a digital control circuit 6 for digitally controlling a portion of or the entirety of the radio device, and a reference signal generator 1 which operates the frequency synthesizer and the digital control circuit, wherein a buffer amplifier 2 is provided between the reference signal generator and the digital control circuit, and switching means 4 is provided in parallel with the buffer amplifier between the reference signal generator and the digital control circuit. When the frequency synthesizer is inactive, the switching means is activated, and a power supply 3 of the buffer amplifier is deactivated. As a result, the power dissipated by the buffer amplifier can be reduced without deteriorating the characteristics of the frequency synthesizer.
    • 一种便携式无线电设备,包括用于产生无线电部分的本地信号的频率合成器5,用于数字控制无线电设备的一部分或全部的数字控制电路6和操作频率合成器的参考信号发生器1和 数字控制电路,其中缓冲放大器2设置在参考信号发生器和数字控制电路之间,开关装置4与参考信号发生器和数字控制电路之间的缓冲放大器并联设置。 当频率合成器不活动时,切换装置被激活,并且缓冲放大器的电源3被停用。 结果,可以减小由缓冲放大器消耗的功率,而不会降低频率合成器的特性。
    • 6. 发明授权
    • Method of removing aerosols by the radiation effect
    • 通过辐射效应去除气溶胶的方法
    • US5476538A
    • 1995-12-19
    • US272741
    • 1994-07-11
    • Gunji NishioJunichi TakadaMitsuo NaritomiMikio MurataHitoshi Abe
    • Gunji NishioJunichi TakadaMitsuo NaritomiMikio MurataHitoshi Abe
    • B03C3/00B03C3/01B03C3/38B03C3/40B03C3/43
    • B03C3/383
    • The present invention is directed to a method of removing aerosols using a radiation effect. Specifically, the method applies a dc current in a cell between a porous electrode exposed to radiation and a porous electrode shielded from radiation; allows the aerosol-containing gas to flow in the cell from the exposed electrode to the shielded electrode and exposing the gas to radiation so that streams of positive and negative ions are formed by radiation-induced ionization; causes the positive and negative ions to collide with the aerosol particles in the cell to form charged aerosol particles; subsequently passes the charged aerosol particles through the shielded electrode so that the aerosol particles electrified with positive ions are deposited or trapped on the shielded electrode if the latter has a negative polarity or that the aerosol particles electrified with negative ions are deposited or trapped on the shielded electrode if the latter has a positive polarity; thereby generates charged aerosol particles of a single polarity in the area just downstream of the shielded electrode as a result of collisions with large quantities of ions that have been electrified to the same single polarity as that of the shielded electrode; and then either deposits the charged aerosol particles of a single polarity on the surface of a substance by an electrostatic force or traps the charged aerosol particles of a single polarity on an electrode or a filter. The method is capable of removing the aerosol particles with an extremely high efficiency.
    • 本发明涉及使用辐射效应去除气溶胶的方法。 具体地,该方法在暴露于辐射的多孔电极和屏蔽辐射的多孔电极之间的电池中施加直流电流; 允许含气雾剂的气体在电池中从暴露的电极流到屏蔽电极,并将气体暴露于辐射,从而通过辐射诱导的电离形成正离子和负离子流; 导致正离子和负离子与细胞中的气溶胶颗粒碰撞以形成带电的气溶胶颗粒; 随后将带电气溶胶颗粒通过屏蔽电极,使得带正电离子的气溶胶颗粒沉积或捕获在屏蔽电极上,如果后者具有负极性,或者带负电离电荷的气溶胶颗粒沉积或被捕获在屏蔽电极上 电极,如果后者具有正极性; 从而与已经通电到与屏蔽电极相同的单极性的大量离子碰撞的结果,在屏蔽电极正下游的区域产生单极性的带电气溶胶颗粒; 然后通过静电力将单一极性的带电气溶胶颗粒沉积在物质的表面上,或者将电极或过滤器上的单极性的带电气溶胶颗粒捕获。 该方法能够以极高的效率去除气溶胶颗粒。