公开(公告)号：US20120257762A1

公开(公告)日：2012-10-11

申请号：US13516408

申请日：2011-11-02

申请人： Yuji Kawasaki ,  Keiji Yamahai ,  Akira Suzuki

发明人： Yuji Kawasaki ,  Keiji Yamahai ,  Akira Suzuki

IPC分类号： G10K11/16

CPC分类号： H04B15/02 ,  H04B1/1027 ,  H04R2420/07

摘要： The present invention provides a communication system. When the audio signal in the wide band is input to a wireless microphone, the wireless microphone performs a balanced modulation processing to invert the frequency spectrum of the audio signal and transmits the audio signal with the inverted frequency. When a speaker apparatus receives the audio signal transmitted from the wireless microphone, the speaker apparatus cuts off a frequency component of the received audio signal in the frequency band of the infrared radiation noise produced by the external apparatus (infrared radiation noise band), performs a reverse balanced modulation processing to invert again the frequency spectrum of the audio signal having the frequency component in the infrared radiation noise band cut off, and outputs the audio signal with the frequency spectrum inverted again.

摘要翻译： 本发明提供一种通信系统。 当宽带中的音频信号输入到无线麦克风时，无线麦克风执行平衡调制处理以反转音频信号的频谱，并以反相频率发送音频信号。 当扬声器装置接收到从无线麦克风发送的音频信号时，扬声器装置在外部设备产生的红外辐射噪声的频带（红外辐射噪声频带）中切断接收到的音频信号的频率分量，执行 反向平衡调制处理再次反转具有红外线辐射噪声频带中的频率分量的音频信号的频谱，并输出频谱再次反转的音频信号。

公开(公告)号：US20120038460A1

公开(公告)日：2012-02-16

申请号：US13265298

申请日：2010-04-09

申请人： Yuji Kawasaki ,  Ryosuke Kitago ,  Hirotaka Fukutsuka ,  Keiji Yamahai

发明人： Yuji Kawasaki ,  Ryosuke Kitago ,  Hirotaka Fukutsuka ,  Keiji Yamahai

IPC分类号： G08B5/22

CPC分类号： G08B13/196 ,  G08B13/19656 ,  G08B13/22 ,  G08B21/02 ,  G08B25/00 ,  H04H20/61 ,  H04H20/69 ,  H04H60/04 ,  H04N7/08 ,  H04N7/18 ,  H04N7/183 ,  H04R1/04

摘要： A sound amplification apparatus (10) comprises one or more microphones (11) that convert collected sound into an audio signal and transmit the audio signal by radio and a sound receiving apparatus (13) that receives the audio signal transmitted from the microphone (11) and amplifies and outputs the sound based on the audio signal. The sound receiving apparatus (13) is configured to perform sound output control in an emergency mode upon receiving an emergency signal transmitted in response to operation of an emergency switch (12) of the microphone (11). With this configuration, it is possible to perform appropriate sound control in a dangerous situation such as intrusion of a suspicious person.

摘要翻译： 声音放大装置（10）包括将收集的声音转换成音频信号并通过无线电发送音频信号的一个或多个麦克风（11）和接收从麦克风（11）发送的音频信号的声音接收装置（13） 并且基于音频信号放大并输出声音。 声音接收装置（13）被配置为在接收到响应于麦克风（11）的紧急开关（12）的操作而发送的紧急信号时，在紧急模式下执行声音输出控制。 利用这种配置，可以在诸如入侵可疑人的危险情况下执行适当的声音控制。

公开(公告)号：US07237905B2

公开(公告)日：2007-07-03

申请号：US10887385

申请日：2004-07-08

申请人： Akihito Yajima ,  Hiroshi Nagai ,  Masami Sato ,  Yuji Kawasaki ,  Daisuke Shirato ,  Yoshihiko Okamura ,  Dai Yoneya ,  Takuji Ohkubo

发明人： Akihito Yajima ,  Hiroshi Nagai ,  Masami Sato ,  Yuji Kawasaki ,  Daisuke Shirato ,  Yoshihiko Okamura ,  Dai Yoneya ,  Takuji Ohkubo

IPC分类号： G03B21/16

CPC分类号： G03B21/16

摘要： In an LCD projector or other projection type display apparatus which uses a lamp such as a xenon lamp for a light source, the lamp is cooled efficiently without increasing ambient noises or without causing the whole apparatus to become large-sized, and at the same time the lifetime and the reliability of a fan which cools the lamp is made improved. When fans 3 and 4 which are disposed on a front side of the lamp mounted with a heat sink 1 rotate, external air of ordinary temperature is taken inlet and guided into ducts 5 and 6 so as to be blown onto the front face of the lamp by means of the fans 3 and 4. Then, high temperature air which was warmed by being blown onto the lamp is exhausted from an outlet to the outside.

摘要翻译： 在使用诸如氙灯的灯为光源的LCD投影仪或其他投影型显示装置中，灯被有效地冷却而不会增加环境噪声，或者不使整个装置变大，并且同时 提高冷却灯的风扇的寿命和可靠性。 当设置在安装有散热器1的灯的前侧的风扇3和4旋转时，将常温常压的外部空气引入入口5和6，以便吹到灯的正面 通过风扇3和4。 然后，通过吹到灯上加热的高温空气从出口被排出到外部。

公开(公告)号：US07054625B2

公开(公告)日：2006-05-30

申请号：US10307173

申请日：2002-11-29

申请人： Yuji Kawasaki ,  Akira Suzuki

发明人： Yuji Kawasaki ,  Akira Suzuki

IPC分类号： H04M3/00

CPC分类号： H04B1/46

摘要： Herein disclosed is a wireless microphone for receiving a sound signal and transmitting a radio signal and operable in combination with an acoustic operation unit to output a control signal, including a modulating unit for modulating the radio signal with the sound signal to produce a modulated radio signal, the modulating unit being operative under a plurality of operation conditions and having a plurality of signal channels in association with the operation conditions allowing the modulated radio signals to pass therethrough; a detecting unit for detecting the control signal outputted by the acoustic operation unit, the control signal being indicative of the operation conditions of the modulating unit; and adjusting unit for adjusting the operation conditions of the modulating unit in response to the control signal from the acoustic operation unit.

摘要翻译： 这里公开了一种用于接收声音信号并发送无线电信号并与声学操作单元结合操作以输出控制信号的无线麦克风，该控制信号包括用于利用声音信号调制无线电信号的调制单元，以产生调制的无线电信号 所述调制单元在多个操作条件下工作并且具有与允许调制的无线电信号通过的操作条件相关联的多个信号通道; 检测单元，用于检测由声学操作单元输出的控制信号，所述控制信号指示调制单元的操作条件; 以及调整单元，用于响应于来自声学操作单元的控制信号来调节调制单元的操作条件。

公开(公告)号：US07027847B2

公开(公告)日：2006-04-11

申请号：US09885429

申请日：2001-06-20

申请人： Yuji Kawasaki ,  Motoshi Suzuki

发明人： Yuji Kawasaki ,  Motoshi Suzuki

IPC分类号： H04B1/10

CPC分类号： H03G3/344 ,  H04B1/406

摘要： Herein disclosed a communications system according to the present invention comprises, a wireless microphone transmission apparatus for transmitting a radio microphone signal on a predetermined wireless microphone frequency channel carrying a voice signal and a tone signal; and a wireless receiving apparatus for receiving the radio microphone signal on the predetermined wireless microphone frequency channel carrying the voice signal and the tone signal transmitted by the wireless microphone transmission apparatus. The wireless receiving apparatus includes an integral computing unit for sequentially computing integrals of the signal levels of the tones of the tone signal at first predetermined time intervals and a data information computing unit for sequentially computing differences between two respective integrals of the signal levels of the tones of the tone signal, at respective second predetermined time intervals to acquire data information.

公开(公告)号：US07010328B2

公开(公告)日：2006-03-07

申请号：US09885435

申请日：2001-06-20

申请人： Yuji Kawasaki ,  Motoshi Suzuki

发明人： Yuji Kawasaki ,  Motoshi Suzuki

IPC分类号： H04B1/10

CPC分类号： H04B1/034 ,  H04B1/08

摘要： Herein disclosed a communications system according to the present invention comprising: a wireless microphone transmission apparatus for transmitting a radio microphone signal on a predetermined wireless microphone frequency channel carrying a voice signal and a tone signal; and a wireless receiving apparatus for receiving the radio microphone signal on the predetermined wireless microphone frequency channel carrying the voice signal and the tone signal transmitted by the wireless microphone transmission apparatus. The wireless microphone transmission apparatus according to the present invention includes a data generating section for judging the type of data information, and generating a data string in response to the type of, and on the basis of the data information, and a tone signal generating section for generating a tone signal on the basis of the data string generated by the data generating section 22, thereby increasing the efficiency of the communications system.

摘要翻译： 这里公开了根据本发明的通信系统，包括：无线麦克风传输装置，用于在携带语音信号和音调信号的预定无线麦克风频率信道上发送无线麦克风信号; 以及无线接收装置，用于在承载由无线麦克风传输装置发送的语音信号和音调信号的预定无线麦克风频率信道上接收无线麦克风信号。 根据本发明的无线麦克风传输装置包括：数据产生部分，用于判断数据信息的类型，并根据数据信息的类型和音调信号产生部分产生数据串; 用于基于由数据产生部分22产生的数据串产生音调信号，从而提高通信系统的效率。