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1. 发明授权

US08798482B2 Infrared transmitter 有权
标题翻译：红外发射机
公开(公告)号：US08798482B2
公开(公告)日：2014-08-05
申请号：US12739733
申请日：2008-09-11
申请人： Tatsuji Harima
发明人： Tatsuji Harima
IPC分类号： H04B10/00 , H04B10/04 , H04B10/12
CPC分类号： H04B10/1141
摘要： An infrared transmitter is obtained that transmits a signal by changing a luminance of an infrared emitting LED, the infrared transmitter including: a transmission signal generating unit; a biasing voltage generating unit that generates a biasing voltage according to a magnitude of a transmission signal; a signal/voltage mixing unit that mixes the transmission signal and the biasing voltage; and a voltage-current conversion unit that converts a voltage into a current, in which the LED is driven by the current obtained by the conversion in the voltage-current conversion unit, so that power consumption efficiency can be improved.
摘要翻译：获得通过改变红外发射LED的亮度来发送信号的红外发射器，所述红外发射器包括：发射信号产生单元; 偏置电压产生单元，其根据发送信号的大小生成偏置电压; 信号/电压混合单元，其混合发送信号和偏置电压; 以及电压电流转换单元，其将电压转换为电流，其中LED由通过电压电流转换单元中的转换获得的电流驱动，从而可以提高功耗效率。

2. 发明授权

US08320776B2 Infrared transmitter 有权
标题翻译：红外发射机
公开(公告)号：US08320776B2
公开(公告)日：2012-11-27
申请号：US12689935
申请日：2010-01-19
申请人： Tatsuji Harima
发明人： Tatsuji Harima
IPC分类号： H04B10/12
CPC分类号： H04B10/1141
摘要： An infrared transmitter transmits a signal via an infrared ray. The infrared transmitter includes: a signal converter for converting the signal into an infrared signal; an oscillator for oscillating a carrier frequency of the infrared signal; a controller for adjusting a cutoff frequency of a filter according to the carrier frequency; and the filter provided between the oscillator and the signal converter to reduce a spurious signal of a carrier wave. The cutoff frequency of the filter is adjusted by the controller.
摘要翻译：红外线发射器通过红外线发射信号。红外发射机包括：信号转换器，用于将信号转换成红外信号; 用于振荡所述红外信号的载波频率的振荡器; 控制器，用于根据载波频率调整滤波器的截止频率; 并且滤波器设置在振荡器和信号转换器之间以减少载波的杂散信号。滤波器的截止频率由控制器调节。

3. 发明申请

US20100183317A1 INFRARED TRANSMITTER 有权
标题翻译：红外发射机
公开(公告)号：US20100183317A1
公开(公告)日：2010-07-22
申请号：US12689935
申请日：2010-01-19
申请人： Tatsuji HARIMA
发明人： Tatsuji HARIMA
IPC分类号： H04B10/04
CPC分类号： H04B10/1141
摘要： An infrared transmitter transmits a signal via an infrared ray. The infrared transmitter includes: a signal converter for converting the signal into an infrared signal; an oscillator for oscillating a carrier frequency of the infrared signal; a controller for adjusting a cutoff frequency of a filter according to the carrier frequency; and the filter provided between the oscillator and the signal converter to reduce a spurious signal of a carrier wave. The cutoff frequency of the filter is adjusted by the controller.
摘要翻译：红外线发射器通过红外线发射信号。红外发射机包括：信号转换器，用于将信号转换成红外信号; 用于振荡所述红外信号的载波频率的振荡器; 控制器，用于根据载波频率调整滤波器的截止频率; 并且滤波器设置在振荡器和信号转换器之间以减少载波的杂散信号。滤波器的截止频率由控制器调节。

4. 发明申请

US20100142721A1 CONFERENCE AUDIO SYSTEM 有权
标题翻译：会议音响系统
公开(公告)号：US20100142721A1
公开(公告)日：2010-06-10
申请号：US11996697
申请日：2005-07-27
申请人： Ariisa Wada , Tatsuji Harima
发明人： Ariisa Wada , Tatsuji Harima
IPC分类号： H04B3/00
CPC分类号： H04R3/005 , H04R27/00 , H04R2201/403 , H04R2420/07
摘要： Even in a conference audio system having an automatic mute release device, it is possible to reduce a delay time from an utterance to output from a speaker. The system includes: an A/D converter (33) for converting an audio signal from a plurality of microphones into a digital signal; audio level detection means to detect whether the converted digital signal level indicates an utterance or no sound; audio data storage means (32) for temporarily storing the digital signal in which the audio level detection means has detected an utterance; control means (31) for controlling storage of the audio data into the audio data storage means (32) and read out of the audio data; and a D/A converter (34) for converting the read-out audio data into an analog audio signal. When the audio level detection means has detected no sound in the series of audio data, the control means (31) hastens the audio data read-out timing in correspondence to the time of the no sound portion.
摘要翻译：即使在具有自动静音释放装置的会议音频系统中，也可以减少从发言到扬声器输出的延迟时间。该系统包括：用于将来自多个麦克风的音频信号转换为数字信号的A / D转换器（33）音频电平检测装置，用于检测所转换的数字信号电平是否表示话音或没有声音; 用于临时存储音频电平检测装置检测到话音的数字信号的音频数据存储装置（32）; 控制装置（31），用于控制音频数据到音频数据存储装置（32）的存储并读出音频数据; 以及用于将读出的音频数据转换为模拟音频信号的D / A转换器（34）。当音频电平检测装置在一系列音频数据中没有检测到声音时，控制装置（31）对应于无声部分的时间加速音频数据读出定时。

5. 发明申请

US20100226660A1 INFRARED TRANSMITTER 有权
标题翻译：红外发射机
公开(公告)号：US20100226660A1
公开(公告)日：2010-09-09
申请号：US12739733
申请日：2008-09-11
申请人： Tatsuji Harima
发明人： Tatsuji Harima
IPC分类号： H04B10/00
CPC分类号： H04B10/1141
摘要： An infrared transmitter is obtained that transmits a signal by changing a luminance of an infrared emitting LED, the infrared transmitter including: a transmission signal generating unit; a biasing voltage generating unit that generates a biasing voltage according to a magnitude of a transmission signal; a signal/voltage mixing unit that mixes the transmission signal and the biasing voltage; and a voltage-current conversion unit that converts a voltage into a current, in which the LED is driven by the current obtained by the conversion in the voltage-current conversion unit, so that power consumption efficiency can be improved.
摘要翻译：获得通过改变红外发射LED的亮度来发送信号的红外发射器，所述红外发射器包括：发射信号产生单元; 偏置电压产生单元，其根据发送信号的大小生成偏置电压; 信号/电压混合单元，其混合发送信号和偏置电压; 以及电压电流转换单元，其将电压转换为电流，其中LED由通过电压电流转换单元中的转换获得的电流驱动，从而可以提高功耗效率。

6. 发明授权

US08045728B2 Conference audio system 有权
标题翻译：会议音响系统
公开(公告)号：US08045728B2
公开(公告)日：2011-10-25
申请号：US11996697
申请日：2005-07-27
申请人： Ariisa Wada , Tatsuji Harima
发明人： Ariisa Wada , Tatsuji Harima
IPC分类号： H04B3/00
CPC分类号： H04R3/005 , H04R27/00 , H04R2201/403 , H04R2420/07
摘要： It is possible to shorten a delay time from utterance to output from a speaker even in a conference audio system including an automatic mute release device. An A/D converter that converts audio signals from a plurality of microphones into digital signals, an audio level detector that detects utterance or silence depending on the level of the converted digital signal, an audio data storage unit that temporarily stores the digital signal for which the audio level detector detected utterance, a controller that controls the storage of audio data in the audio data storage unit and the reading of the audio data, and a D/A converter that converts the read audio data into analog audio signals are provided. The controller hastens read timing of the audio data in accordance with a time period of silent portion when the audio level detector detects silence in a series of the audio data.
摘要翻译：即使在包括自动静音释放装置的会议音频系统中，也可以缩短从发音到扬声器输出的延迟时间。将来自多个麦克风的音频信号转换为数字信号的A / D转换器，根据转换的数字信号的电平来检测发音或静音的音频电平检测器，临时存储数字信号的音频数据存储单元，提供音频电平检测器检测到的发音，控制音频数据存储单元中的音频数据的存储和音频数据的读取的控制器以及将读取的音频数据转换为模拟音频信号的D / A转换器。当音频电平检测器检测到一系列音频数据中的静音时，控制器根据静音部分的时间段加速音频数据的读取定时。

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