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1. 发明申请

US20040183611A1 Multi-band oscillator that can oscillate at each oscillation band under optimum oscillation conditions 审中-公开
标题翻译：在最佳振荡条件下可在每个振荡频带振荡的多频带振荡器
公开(公告)号：US20040183611A1
公开(公告)日：2004-09-23
申请号：US10801627
申请日：2004-03-16
申请人： Alps Electric Co., Ltd.
发明人： Kimihiro Nakao , Takeo Suzuki
IPC分类号： H03K003/26
CPC分类号： H03K3/2823
摘要： A multi-band oscillator includes plural pairs of oscillation transistors, which are differentially connected and which are provided independently for each oscillation frequency band; and feedback capacitor elements that connect the mutual collector and base of each pair of the oscillation transistors. The collectors of one of each pair of the oscillation transistors are connected to one another, and the collectors of the other pairs of the oscillation transistors are connected to each other. Between the collector of one of the oscillation transistors and the collector of the other oscillation transistor, a plurality of capacitor elements for switching the oscillation frequency band are connected via switching devices connected in series thereto in such a manner as to correspond to each pair of oscillation transistors, and only one pair of oscillation transistors corresponding to the capacitor element which is connected to the switching device which is turned on are placed in an operating condition.
摘要翻译：多频带振荡器包括多对振荡晶体管，这些振荡晶体管被差分连接，并且对于每个振荡频带独立设置; 以及连接每对振荡晶体管的集电极和基极的反馈电容器元件。每对振荡晶体管中的一个的集电极彼此连接，另一对振荡晶体管的集电极彼此连接。在一个振荡晶体管的集电极和另一个振荡晶体管的集电极之间，用于切换振荡频带的多个电容器元件通过串联连接的开关装置以与每对振荡对应的方式连接晶体管，并且只有一对对应于与接通的开关器件连接的电容器元件的振荡晶体管置于工作状态。

2. 发明申请

US20030050031A1 Frequency conversion circuit having suppressed beat 审中-公开
标题翻译：具有抑制拍频的变频电路
公开(公告)号：US20030050031A1
公开(公告)日：2003-03-13
申请号：US10230784
申请日：2002-08-28
申请人： Alps Electric Co., Ltd.
发明人： Takeo Suzuki , Shoichi Asano , Toru Izumiyama
IPC分类号： H04B001/26 , H04B001/06 , H04B007/00
CPC分类号： H04B1/28 , H04B1/403
摘要： A frequency conversion circuit includes a first mixer for performing frequency conversion of a received signal having components disposed at first frequency intervals into a first intermediate frequency signal which has a frequency lower than that of the received signal and which has components disposed at predetermined frequency intervals, two second mixers for performing frequency conversion of the first intermediate frequency signal into a second intermediate frequency signal having a frequency lower than that of the first intermediate frequency signal. A first local oscillation signal changing at second frequency intervals different from the first frequency intervals is supplied to the firs mixer, and a second local oscillation signal having a frequency which is the reciprocal of an integer of the frequency of the first local oscillation signal is supplied to the second mixers.
摘要翻译：频率转换电路包括：第一混频器，用于将具有以第一频率间隔布置的分量的接收信号进行频率转换为具有低于接收信号的频率的第一中频信号，并且具有以预定频率间隔布置的分量，两个第二混频器，用于执行第一中频信号的频率转换成具有低于第一中频信号的频率的第二中频信号。将与第一频率间隔不同的第二频率间隔改变的第一本地振荡信号提供给第一混频器，并且提供具有作为第一本地振荡信号的频率的整数的倒数的频率的第二本地振荡信号到第二台搅拌机。

3. 发明申请

US20030137812A1 Surface mount typed electronic circuit of small size capable of obtaining a high-Q 失效
标题翻译：表面贴装小型电子电路，可获得高Q值
公开(公告)号：US20030137812A1
公开(公告)日：2003-07-24
申请号：US10346324
申请日：2003-01-17
申请人： Alps Electric Co., Ltd.
发明人： Takeo Suzuki , Shigeru Osada
IPC分类号： H05K001/18
CPC分类号： H01L23/66 , H01F27/292 , H01F27/40 , H01L25/0657 , H01L2224/16 , H01L2225/06513 , H01L2225/06517 , H01L2225/06541 , H01L2225/06565 , H01L2924/15192 , H01L2924/15313
摘要： In the surface mount typed electronic circuit of the invention, an insulating substrate has an inductance element formed in a conductive pattern whose end portions are connected to the second lands. A bare chip is superimposed on the insulating substrate, so as to respectively connect the first electrodes and the second electrodes to the first lands and the second lands. Therefore, since the inductance element is positioned below the bare chip, the length of the connecting conductor between the inductance element and the semiconductor circuit can be extremely shortened, and a high-Q electronic circuit, especially in high-frequency, can be provided.
摘要翻译：在本发明的表面贴装型电子电路中，绝缘基板具有以导电图案形成的电感元件，其端部连接到第二焊盘。裸芯片叠加在绝缘基板上，以将第一电极和第二电极分别连接到第一焊盘和第二焊盘。因此，由于电感元件位于裸芯片的下方，电感元件和半导体电路之间的连接导体的长度可以极大地缩短，并且可以提供特别是高频的高Q电子电路。

4. 发明申请

US20040052205A1 OFDM receiver for easily synchronizing base band signal 失效
标题翻译： OFDM接收机，用于轻松同步基带信号
公开(公告)号：US20040052205A1
公开(公告)日：2004-03-18
申请号：US10654732
申请日：2003-09-04
申请人： Alps Electric Co., Ltd.
发明人： Yukio Ohtaki , Kouta Iijima , Takeo Suzuki
IPC分类号： H04J011/00
CPC分类号： H04B7/084 , H04B7/0874 , H04B7/0894 , H04L1/004 , H04L27/2647
摘要： An OFDM receiver has four antennas or more for receiving an OFDM modulated high frequency signal, and plural OFDM demodulators for inputting a base band signal of a time area thereto on the basis of the high frequency signal and outputting the base band signal of a frequency area, wherein the OFDM demodulators are arranged every plural antenna groups with two or more of the antennas as one group, and a signal is diversity-synthesized by a first phase shifter until the base band signal of the time area is inputted to each of the OFDM demodulators, and the base band signal of the frequency area is diversity-synthesized by a second phase shifter.
摘要翻译： OFDM接收机具有用于接收OFDM调制高频信号的四个或更多天线，以及用于基于高频信号输入时区的基带信号的多个OFDM解调器，并输出频率区域的基带信号其中，将OFDM解调器每两天以上的天线组合配置为一组，由第一移相器对信号进行分集合成，直至时区的基带信号输入到每个OFDM 解调器，并且频率区域的基带信号由第二移相器进行分集合成。

5. 发明申请

US20040027188A1 Mixer which assures satisfactory performance even at low supply voltage 失效
标题翻译：混频器即使在低电源电压下也能保证令人满意的性能
公开(公告)号：US20040027188A1
公开(公告)日：2004-02-12
申请号：US10628213
申请日：2003-07-28
申请人： Alps Electric Co., Ltd.
发明人： Takeo Suzuki , Osamu Tatsumi
IPC分类号： G06G007/12
CPC分类号： H03D7/1425 , H03B5/1212 , H03B5/1231 , H03B2200/0074 , H03D7/1433 , H03D7/1458
摘要： A mixer has a first transistor and a second transistor which constitute a balanced oscillation circuit with their respective emitters connected with each other; a third transistor whose emitter is connected with the emitter of the first transistor; and a fourth transistor whose emitter is connected with the emitter of the second transistor. A first signal is inputted between a base of the third transistor and a base of the fourth transistor in a balanced way; and the third transistor and the fourth transistor mix an oscillation signal with the first signal and a second signal is outputted from the third transistor and the fourth transistor in a balanced way.
摘要翻译：混频器具有构成平衡振荡电路的第一晶体管和第二晶体管，其各自的发射极彼此连接; 第三晶体管，其发射极与第一晶体管的发射极连接; 以及发射极与第二晶体管的发射极连接的第四晶体管。第一信号以平衡的方式输入到第三晶体管的基极和第四晶体管的基极之间; 并且所述第三晶体管和所述第四晶体管以与所述第一信号混合的振荡信号和第二信号以平衡的方式从所述第三晶体管和所述第四晶体管输出。

6. 发明申请

US20030171101A1 Dual-band frequency converter unit with high operability 失效
标题翻译：双频变频器单元具有高可操作性
公开(公告)号：US20030171101A1
公开(公告)日：2003-09-11
申请号：US10382278
申请日：2003-03-05
申请人： Alps Electric Co., Ltd.
发明人： Takeo Suzuki , Shoichi Asano
IPC分类号： H04B001/00
CPC分类号： H04B1/406
摘要： A dual-band frequency converter unit, for selectively performing frequency conversion between a 2.4-GHz high-frequency-band signal or a 5-GHz high-frequency-band signal and a baseband signal by frequency mixing, includes a local oscillator for generating a local oscillation signal; a first frequency divider for generating a half-frequency signal of the local oscillation signal; and a second frequency divider for generating a quarter-frequency signal of the local oscillation signal. Frequency conversion between the 2.4-GHz high-frequency-band signal and the baseband signal is performed by frequency mixing using the half-frequency signal of the local oscillation signal. Frequency conversion between the 5-GHz high-frequency-band signal and the baseband signal is performed by frequency mixing using the local oscillation signal and the quarter-frequency signal of the local oscillation signal.
摘要翻译：用于通过频率混合选择性地在2.4GHz高频带信号或5GHz高频带信号与基带信号之间进行频率转换的双频变频器单元包括：本地振荡器，用于产生本地振荡信号; 用于产生本地振荡信号的半频信号的第一分频器; 以及用于产生本地振荡信号的四分之一频率信号的第二分频器。通过使用本地振荡信号的半频信号的混频来进行2.4GHz高频带信号与基带信号之间的频率转换。通过使用本地振荡信号和本地振荡信号的四分之一频率信号的混频来执行5GHz高频带信号与基带信号之间的频率转换。

7. 发明申请

US20040185812A1 Direct conversion circuit having reduced bit errors 失效
标题翻译：直接转换电路具有减少的位错误
公开(公告)号：US20040185812A1
公开(公告)日：2004-09-23
申请号：US10801370
申请日：2004-03-16
申请人： Alps Electric Co., Ltd.
发明人： Takeo Suzuki , Shigeru Osada
IPC分类号： H04B001/00
CPC分类号： H03D3/009 , H04B1/30
摘要： A direct conversion circuit includes first and second mixers to which a radio frequency signal is input. An oscillator supplies the first and second mixers with local oscillation signals whose phases are orthogonal to each other. A baseband processing circuit processes baseband signals output from the first and second mixers. A level-difference correcting circuit which corrects the two baseband signals input to the baseband processing circuit so that the levels of both are equal to each other is provided in a stage before the first and second mixers. The levels of the baseband signals are corrected by changing relative levels of the radio frequency signal input to the first mixer and the radio frequency signal input to the second mixer.
摘要翻译：直接转换电路包括输入射频信号的第一和第二混频器。振荡器为第一和第二混频器提供相位彼此正交的本地振荡信号。基带处理电路处理从第一和第二混频器输出的基带信号。在第一和第二混频器之前的阶段，提供校正输入到基带处理电路的两个基带信号使得两者的电平彼此相等的电平差校正电路。通过改变输入到第一混频器的射频信号的相对电平和输入到第二混频器的射频信号来校正基带信号的电平。

8. 发明申请

US20040070693A1 Television tuner which operates at low voltage 失效
标题翻译：电视调谐器，低电压工作
公开(公告)号：US20040070693A1
公开(公告)日：2004-04-15
申请号：US10627421
申请日：2003-07-25
申请人： ALPS Electric Co., Ltd.
发明人： Takeo Suzuki
IPC分类号： H04N005/50
CPC分类号： H03J5/244 , H04N5/50 , H04N21/426
摘要： A television tuner has a high frequency tuning circuit, a high frequency amplifier, a mixer, and an oscillating section. The tuning circuit is made up of an inductor and plural capacitors and at least one of the capacitors is selected and connected in parallel with the inductor; and the oscillating section has at least plural oscillators which are included in an integrated circuit. In the integrated circuit, the oscillators respectively have variable capacitors to vary a frequency of a local oscillation signal. Groups into which a receiving frequency band is divided correspond to the oscillators on the basis of one oscillator per group; and each of the oscillators generates local oscillation frequencies depending on television signals in the corresponding group.
摘要翻译：电视调谐器具有高频调谐电路，高频放大器，混频器和振荡部分。调谐电路由电感器和多个电容器组成，电容器中的至少一个选择并与电感器并联; 并且所述振荡部具有包含在集成电路中的至少多个振荡器。在集成电路中，振荡器分别具有可变电容器以改变本地振荡信号的频率。基于每组一个振荡器，接收频带划分成的组对应于振荡器; 并且每个振荡器根据相应组中的电视信号产生本地振荡频率。

9. 发明申请

US20040029544A1 Direct conversion circuit capable of eliminating distortion of base band signals 审中-公开
标题翻译：直接转换电路能够消除基带信号的失真
公开(公告)号：US20040029544A1
公开(公告)日：2004-02-12
申请号：US10627836
申请日：2003-07-24
申请人： Alps Electric Co., Ltd.
发明人： Takeo Suzuki , Shigeru Osada
IPC分类号： H04B001/00
CPC分类号： H03D7/166
摘要： The direct current circuit comprises first to fourth mixers to which high frequency signals and a local oscillation signal having an equal frequency to that of the high frequency signal are inputted, and first and second multiplexer circuits which output components of a sum of two signals. A phase of the high frequency signals which are inputted to the first and second mixers and a phase of the high frequency signals which are inputted to the third and fourth mixers are made to differ from each other by null. A phase of the local oscillation signals which are inputted to the first and third mixers and a phase of the local oscillation signals which are inputted to the second and fourth mixers are made to differ from each other by null/2. The base band signals formed of an in-phase component which are respectively outputted from the first mixer and the third mixer are inputted to the first multiplexer circuit, while the base band signals formed of an ortho-component which are respectively outputted from the second mixer and the fourth mixer are inputted to the second multiplexer circuit.
摘要翻译：直流电路包括输入高频信号和与高频信号频率相同频率的本地振荡信号的第一至第四混频器，以及输出两个信号之和的分量的第一和第二多路复用器电路。输入到第一和第二混频器的高频信号的相位和输入到第三和第四混频器的高频信号的相位彼此不同。输入到第一和第三混频器的本地振荡信号的相位和输入到第二和第四混频器的本地振荡信号的相位彼此相差π/ 2。由分别从第一混频器和第三混频器输出的同相分量形成的基带信号被输入到第一多路复用器电路，而分别由第二混频器输出的正分量形成的基带信号并且第四混频器被输入到第二多路复用器电路。

10. 发明申请

US20020153945A1 FM demodulator capable of providing demodulated data with high determination accuracy 失效
标题翻译： FM解调器能够提供高精度的解调数据
公开(公告)号：US20020153945A1
公开(公告)日：2002-10-24
申请号：US10126386
申请日：2002-04-19
申请人： Alps Electric Co., Ltd.
发明人： Takeo Suzuki , Akihisa Iikura
IPC分类号： H03D003/00
CPC分类号： H03D3/00 , H04L27/148
摘要： An FM demodulator for reproducing data by performing FM demodulation of a received RF signal in a Bluetooth transmission system is provided. The FM demodulator includes a frequency discrimination unit and a level determination unit. The FM demodulator frequency-discriminates the RF signal, performs digital conversion of the discriminated RF signal, and outputs converted data. The level determination unit performs level comparison of current input-data, supplied from the frequency discrimination unit in the latest clock period, with last input-data, supplied from the frequency discrimination unit in the immediately preceding clock period, determines a logic state of the current input-data based on the result of the level comparison, and reproduces data in accordance with the determined logic state.
摘要翻译：提供了一种用于通过在蓝牙传输系统中对所接收的RF信号执行FM解调来再现数据的FM解调器。 FM解调器包括频率鉴别单元和电平确定单元。 FM解调器对RF信号进行频率鉴别，对识别的RF信号进行数字转换，并输出转换后的数据。电平确定单元执行从最新时钟周期中的频率鉴别单元提供的当前输入数据与在紧邻的前一个时钟周期中从频率鉴别单元提供的最后输入数据的电平比较，确定逻辑状态基于电平比较的结果的当前输入数据，并且根据确定的逻辑状态再现数据。

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