公开(公告)号：US5436658A

公开(公告)日：1995-07-25

申请号：US291494

申请日：1994-08-17

申请人： Makoto Onga ,  Tsutomu Niimura

发明人： Makoto Onga ,  Tsutomu Niimura

IPC分类号： H04N5/232 ,  H04N5/225 ,  H04N5/335 ,  H04N5/343 ,  H04N7/01

CPC分类号： H04N5/23248 ,  H04N5/23254 ,  H04N5/23258 ,  H04N5/23267 ,  H04N5/335

摘要： In a camera device, the pixel numbers of an imaging device are selected to be greater than the largest number of pixels necessary for the generation of video signals of different aspect ratios and television standards. Output signals of the imaging device are stored in a memory and are then are selectively output. As a result, common use of an imaging device is permitted for camera apparatuses of, for instance, the NTSC, PAL and other standards.

摘要翻译： 在相机装置中，成像装置的像素数被选择为大于生成不同宽高比和电视标准的视频信号所需的最大像素数。 成像装置的输出信号被存储在存储器中，然后被选择性地输出。 结果，对于例如NTSC，PAL和其他标准的相机装置，允许成像装置的共同使用。

公开(公告)号：US08125152B2

公开(公告)日：2012-02-28

申请号：US11490809

申请日：2006-07-21

申请人： Masaru Fujiwara ,  Tsutomu Niimura ,  Makoto Natori

发明人： Masaru Fujiwara ,  Tsutomu Niimura ,  Makoto Natori

IPC分类号： H01J17/20

CPC分类号： G02F1/133604 ,  G02F1/133603 ,  G02F1/133609 ,  G02F2001/133614

摘要： A liquid crystal display and a light source apparatus capable of improving color reproduction compared to related arts without declining intensity. A light source apparatus includes: a cold cathode fluorescent tube including a B phosphor for blue and a G phosphor for green; and a light emitting diode for red, wherein the G phosphor emits a single-spectrum light with a peak wavelength of 510 to 530 nm, and the light emitting diode emits a single-spectrum light with a peak wavelength of 620 to 650 nm.

摘要翻译： 与相关技术相比，能够在不降低强度的情况下，能够改善色彩再现的液晶显示器和光源装置。 光源装置包括：包括蓝色B荧光体和绿色荧光粉的冷阴极荧光管; 以及用于红色的发光二极管，其中所述G荧光体发射峰值波长为510至530nm的单光谱，并且所述发光二极管发射峰值波长为620至650nm的单光谱。

公开(公告)号：US4369411A

公开(公告)日：1983-01-18

申请号：US186566

申请日：1980-09-12

申请人： Tsutomu Niimura ,  Kyoichi Murakami ,  Akira Yamakoshi

发明人： Tsutomu Niimura ,  Kyoichi Murakami ,  Akira Yamakoshi

IPC分类号： H03F3/343 ,  H03F3/30 ,  H03F3/34 ,  H03F3/45 ,  H03G1/00 ,  H03G3/10

CPC分类号： H03G1/0023 ,  H03F3/30 ,  H03F3/45071

摘要： A signal converting circuit for converting a single-ended input signal to a pair of differential output signals includes a current source for generating a constant current; an input signal generating circuit for generating an input signal current; a first path including at least one diode connected to the current source and the input signal generating circuit for producing a first differential current as a function of the constant current and the input signal current; a second path including a series combination of a diode and the collector-emitter path of a transistor connected to the current source and the input signal generating circuit for producing a second differential current as a function of the constant current and the input signal current, the transistor being supplied with a current at its input; a differential amplifier output circuit having two transistors connected to the first and second paths for producing differential output signals in response to the first and second differential currents; and a circuit for eliminating the effect on the differential output signals of the current at the input of the transistor, the circuit for eliminating including a transistor having its collector-emitter path connected between the first path and ground and a diode connected between the second path and ground.

摘要翻译： 用于将单端输入信号转换成一对差分输出信号的信号转换电路包括用于产生恒定电流的电流源; 用于产生输入信号电流的输入信号产生电路; 第一路径，包括连接到电流源的至少一个二极管和用于产生作为恒定电流和输入信号电流的函数的第一差分电流的输入信号产生电路; 第二路径包括二极管和连接到电流源的晶体管的集电极 - 发射极路径的串联组合和用于产生作为恒定电流和输入信号电流的函数的第二差分电流的输入信号发生电路， 晶体管在其输入端提供电流; 差分放大器输出电路，具有连接到第一和第二路径的两个晶体管，用于响应于第一和第二差分电流产生差分输出信号; 以及用于消除对在晶体管的输入处的电流的差分输出信号的影响的电路，用于消除的电路包括其集电极 - 发射极路径连接在第一路径和地之间的晶体管和连接在第二路径之间的二极管 和地面。

公开(公告)号：US4132952A

公开(公告)日：1979-01-02

申请号：US873963

申请日：1978-01-31

申请人： Masayuki Hongu ,  Tsutomu Niimura ,  Hiromi Kawakami

发明人： Masayuki Hongu ,  Tsutomu Niimura ,  Hiromi Kawakami

IPC分类号： H03D7/00 ,  H03D7/18 ,  H03J5/24 ,  H04B1/26 ,  H04N5/44 ,  H04B1/10

CPC分类号： H04B1/006 ,  H03D7/00 ,  H03D7/18 ,  H03J5/244 ,  H04B1/005 ,  H04B1/26 ,  H04N5/44

摘要： A tuner for receiving signals broadcast on two spaced bands, each divided into several channels, has two fixed bandpass filters, one to pass all of the channels in the lower frequency band and the other to pass all of the channels in the higher frequency band. The tuner includes a mixer to which signals of either band are supplied by selective operation of a double-throw switch. A tunable local oscillator supplies a heterodyning signal to the mixer to convert any selected channel of the received signal to an intermediate frequency (i.f.) band chosen to avoid image interference from undesired channels, whether the local oscillator frequency is above or below the selected channel. To ease the constraints on the choice of the i.f. band, different i.f. filters tuned to first and second i.f. bands may be used for the higher and lower received bands. A second double-throw switch ganged with the first switch can then be used to direct the heterodyned signals to the proper i.f. filter.

公开(公告)号：US4630116A

公开(公告)日：1986-12-16

申请号：US579107

申请日：1984-02-10

申请人： Toshiaki Isogawa ,  Ryuji Shiono ,  Tsutomu Niimura ,  Joichi Sato ,  Mitsuru Sato

发明人： Toshiaki Isogawa ,  Ryuji Shiono ,  Tsutomu Niimura ,  Joichi Sato ,  Mitsuru Sato

IPC分类号： H04N5/14 ,  H04N5/16 ,  H04N5/262

CPC分类号： H04N5/148

摘要： A video signal inverting circuit, wherein a pedestal level of an output signal is selectively changed between a posi-mode and a nega-mode. The pedestal level of the output video signal is set equal to the pedestal level of the posi-mode output video signal in the nega-mode in accordance with a nega-mode/posi-mode control signal. In spite of the nega-mode/posi-mode control signal, a level setting circuit for the posi-mode is used during horizontal blanking period in the nega-mode.

摘要翻译： 一种视频信号反相电路，其中输出信号的基准电平在位置模式和负模式之间选择性地改变。 输出视频信号的基准电平根据负模式/位置模式控制信号被设置为等于负模式中的位置模式输出视频信号的基准电平。 尽管存在负模式/位置模式控制信号，但是在负模式的水平消隐期间使用位置模式的电平设置电路。

公开(公告)号：US4292597A

公开(公告)日：1981-09-29

申请号：US83858

申请日：1979-10-11

申请人： Tsutomu Niimura ,  Kyoichi Murakami ,  Akira Yamakoshi

发明人： Tsutomu Niimura ,  Kyoichi Murakami ,  Akira Yamakoshi

IPC分类号： H03F3/30 ,  H03F3/45 ,  H03G1/00 ,  H03G3/30

CPC分类号： H03F3/3094 ,  H03F3/45071 ,  H03G1/0023

摘要： A circuit that is particularly adapted to convert a single-ended input signal to a pair of differential output signals. First and second series circuits are connected in parallel, the first series circuit being formed of first and second diodes and the second series circuit being formed of a third diode connected with the collector-emitter circuit of a transistor. The base electrode of the transistor is connected to the junction defined by the first and second diodes such that the base-emitter circuit thereof is in parallel arrangement with the second diode. A current source is connected to the parallel-connected series circuits so as to supply currents thereto. An input signal is supplied to the junction defined by the first and second diodes; the first and second outputs are coupled to this junction and to the collector electrode of the transistor, respectively, for providing differential output signal currents that are a function of the supplied signal. This circuit can be connected to a differential amplifier to supply differential signals to the latter, whereby a gain controlled amplification of the original single-ended input signal can be attained.

摘要翻译： 特别适用于将单端输入信号转换成一对差分输出信号的电路。 第一和第二串联电路并联连接，第一串联电路由第一和第二二极管形成，第二串联电路由与晶体管的集电极 - 发射极连接的第三二极管形成。 晶体管的基极连接到由第一和第二二极管限定的结，使得其基极 - 发射极电路与第二二极管并联布置。 电流源连接到并联串联电路，以便向其提供电流。 输入信号被提供给由第一和第二二极管限定的结; 第一和第二输出分别耦合到该结和晶体管的集电极，以提供作为所提供信号的函数的差分输出信号电流。 该电路可以连接到差分放大器以向后者提供差分信号，从而可以获得原始单端输入信号的增益控制放大。

公开(公告)号：US4115737A

公开(公告)日：1978-09-19

申请号：US851283

申请日：1977-11-14

申请人： Masayuki Hongu ,  Tsutomu Niimura ,  Hiromi Kawakami

发明人： Masayuki Hongu ,  Tsutomu Niimura ,  Hiromi Kawakami

IPC分类号： H03D7/00 ,  H03D7/18 ,  H03J5/24 ,  H04B1/26 ,  H04N5/44 ,  H04B1/06

CPC分类号： H04B1/006 ,  H03D7/00 ,  H03D7/18 ,  H03J5/244 ,  H04B1/005 ,  H04B1/26 ,  H04N5/44

摘要： A tuner for receiving signals broadcast on two spaced bands, each divided into several channels, has two fixed bandpass filters, one to pass all of the channels in the lower band between the lowest frequency f.sub.P of the lowest channel and the highest frequency f.sub.S of the highest channel of the lower band, and the other to pass all of the channels in the upper frequency band between the lowest frequency f.sub.T of the lowest channel and the highest frequency f.sub.W in the highest channel of the upper band. The bandwidth of each channel is f.sub.B. The tuner includes an amplifier and a third filter to which signals of either band are supplied by selective operation of a switch. The third filter has a cut-off frequency below the second harmonic of the lowest frequency of the upper band to simplify the avoidance of image interference from second harmonic signals of the band. A tunable local oscillator supplies a heterodyning signal to the mixer to convert any selected channel of the received signal to an intermediate frequency (i.f.) band, and image interference is avoided by setting the local oscillator frequency f.sub.n required to convert channel n to the i.f. at a frequency above that channel such that the lowest frequency f.sub.L of the i.f. band satisfies the following conditions: ##EQU1##

摘要翻译： 用于接收在两个间隔的频带上广播的信号的调谐器，每个分成几个信道，具有两个固定带通滤波器，一个通过最低信道的最低频率fP和最低频率的最高频率fS之间的较低频带中的所有信道 较低频带的最高频道，另一方通过最高频带的最低频率fT和上频段最高频道中最高频率fW之间的上频段中的所有频道。 每个通道的带宽为fB。 调谐器包括放大器和第三滤波器，通过开关的选择性操作来提供任一频带的信号。 第三滤波器具有低于上频带最低频率的二次谐波的截止频率，以简化避免来自频带二次谐波信号的图像干扰。 可调本地振荡器向混频器提供外差信号以将接收信号的任何所选信道转换为中频（i.f.）频带，并且通过将通道n转换为i.f来设置所需的本地振荡器频率fn来避免图像干扰。 在该频道之上的频率处，使得i.f.的最低频率fL。 带满足以下条件：（1）（2）和或（3）

公开(公告)号：US4012771A

公开(公告)日：1977-03-15

申请号：US651791

申请日：1976-01-23

申请人： Yoshio Ishigaki ,  Takao Tsuchiya ,  Tsutomu Niimura

发明人： Yoshio Ishigaki ,  Takao Tsuchiya ,  Tsutomu Niimura

IPC分类号： H04N9/84 ,  H04N5/79

CPC分类号： H04N9/84

摘要： In apparatus for reproducing color video signals recorded in successive parallel tracks on a record medium with the chrominance components of video signals recorded in next adjacent tracks having first and second carriers which differ from each other in respect to their phases or polarity characteristics; and in which a plurality of transducers scan along the tracks one at a time so as to reproduce the video signals recorded in each of said tracks along with cross-talk signals from the tracks next adjacent thereto, means for separating said chrominance signal components from the luminance signal component in the reproduced signals, and a signal processing circuit including a switching circuit and a comb filter provides the separated chrominance components of video signals reproduced from each of said tracks with a common carrier and eliminates therefrom the chrominance components of the cross-talk signals on the basis of said different phases of the first and second carriers with which the chrominance components were recorded in the tracks which are next adjacent to each other: the changing-over of the switching circuit is controlled in response to the phase of the chrominance component carrier that results therefrom so as to ensure phase alignment of the common carrier with which the chrominance components of the video signals reproduced from the successive tracks are provided. Further, control signals are recorded on the record medium to identify those tracks in which video signals are recorded with their chrominance components having said first and second carriers, respectively, and, on reproducing, such identifying control signals are reproduced to control the movements of the transducers and, through such controlled movements, to regulate the changing-over of the switching circuit.

摘要翻译： 用于再现记录在记录介质上的连续平行轨道中的彩色视频信号的装置，其中记录在下一相邻轨道中的视频信号的色度分量具有相对于它们的相位或极性特性彼此不同的第一和第二载波; 并且其中多个换能器一次沿轨道扫描一次，以便再现记录在每个所述轨道中的视频信号以及与其相邻的轨道的串扰信号，用于将所述色度信号分量与 再现信号中的亮度信号分量，以及包括切换电路和梳状滤波器的信号处理电路，使用各公共载波从每个所述磁迹再现的视频信号的分离的色度分量提供，从而消除串扰的色度分量 基于第一和第二载波的所述不同相位的信号，其中色度分量被记录在彼此相邻的轨道中：响应于色度的相位来控制切换电路的转换 由此产生的分量载体，以便确保共同载体的相位对准 提供从连续轨道再现的视频信号的色调分量。 此外，控制信号被记录在记录介质上，以分别识别具有其具有所述第一和第二载波的色度分量记录视频信号的那些轨道，并且在再现时，再现这些识别控制信号以控制 传感器，并通过这种受控的运动来调节开关电路的转换。

公开(公告)号：US3980816A

公开(公告)日：1976-09-14

申请号：US592178

申请日：1975-07-01

申请人： Tsutomu Niimura

发明人： Tsutomu Niimura

IPC分类号： H04N5/52

CPC分类号： H04N5/52

摘要： An automatic gain control circuit for a video signal amplifier to integrate the synchronizing pulse portion of the composite signal and apply the integrated signal to a pulse generating circuit to generate a pulse each time the integrated signal exceeds a certain level. The pulse, which has a fixed magnitude, is added to the amplified video signal in the same polarity relative to the blanking level as the luminance signal. A control circuit measures the peak-to-peak value of the combined signal and generates a controlling signal having a magnitude that varies with changes in the peak value and is used to control the gain of the amplifier.

摘要翻译： 一种用于视频信号放大器的自动增益控制电路，用于对复合信号的同步脉冲部分进行积分，并将积分信号施加到脉冲发生电路，以在每次积分信号超过一定电平时产生脉冲。 具有固定幅度的脉冲相对于消隐电平以与亮度信号相同的极性相加于放大视频信号。 控制电路测量组合信号的峰 - 峰值，并产生具有随着峰值的变化而变化的幅度的控制信号，并用于控制放大器的增益。

公开(公告)号：US3974460A

公开(公告)日：1976-08-10

申请号：US576737

申请日：1975-05-12

申请人： Masayuki Hongu ,  Tsutomu Niimura

发明人： Masayuki Hongu ,  Tsutomu Niimura

IPC分类号： H03B5/36 ,  H03B19/14 ,  H03C1/36 ,  H03C1/54 ,  H04N5/40 ,  H03C1/06

CPC分类号： H04N5/40 ,  H03C1/36 ,  H03C1/545 ,  H03B19/14 ,  H03B5/36 ,  H03C2200/0012 ,  H03C2200/0066

摘要： A high-frequency modulator circuit including a frequency multiplier comprised of a first differential amplifier for receiving a base oscillating signal and for multiplying the frequency of the base oscillating signal to thereby produce a higher frequency carrier signal; and a modulating circuit connected to the first differential amplifier for modulating the carrier signal with input information. The first differential amplifier includes a pair of output terminals; and the modulating circuit is comprised of a second and third differential amplifier, each having a pair of input terminals connected to the respective output terminals of the first differential amplifier such that the higher frequency carrier signal is applied differentially to each of the second and third differential amplifiers. The second and third differential amplifiers each includes a pair of output terminals, the second differential amplifier output terminals being connected to oppositely phased ones of the third differential amplifier output terminal. The input information is supplied to at least one of the second and third differential amplifiers to thereby vary the higher frequency carrier currents which flow therethrough.

摘要翻译： 一种高频调制器电路，包括：频率乘法器，包括用于接收基本振荡信号的第一差分放大器，并且用于乘以基本振荡信号的频率，从而产生较高频率的载波信号; 以及连接到第一差分放大器的调制电路，用于利用输入信息调制载波信号。 第一差分放大器包括一对输出端子; 并且调制电路包括第二和第三差分放大器，每个差分放大器具有连接到第一差分放大器的相应输出端的一对输入端，使得较高频率载波信号被差分地施加到第二和第三差分 放大器 第二和第三差分放大器各自包括一对输出端子，第二差分放大器输出端子连接到第三差分放大器输出端子的相对相位的输出端子。 输入信息被提供给第二和第三差分放大器中的至少一个，从而改变流过其中的较高频率载波电流。