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1. 发明授权

US06842131B1 Delta-sigma modulator 失效
标题翻译： Delta-Σ调制器
公开(公告)号：US06842131B1
公开(公告)日：2005-01-11
申请号：US10847399
申请日：2004-05-18
申请人： Li-Sheng Lo , Tung-Tsai Liao
发明人： Li-Sheng Lo , Tung-Tsai Liao
IPC分类号： H03M7/32 , H03M7/36 , H03M3/00
CPC分类号： H03M7/3015 , H03M7/3026 , H03M7/3031
摘要： A Delta-Sigma modulator is disclosed, which has a Delta adder, a Sigma adder, a first latch, a second latch and a feedback generator, wherein the feedback generator provides a feedback signal to the Delta adder based on a pre-stage data signal provided by the first latch, so that the Delta adder provides a pre-stage addition signal. The Sigma adder performs an accumulation to provide an accumulative signal to the first latch, so that the first latch provides a pre-stage data signal to the second latch to enable the second latch to output a digital output signal.
摘要翻译：公开了一种Δ-Σ调制器，其具有Δ加法器，Sigma加法器，第一锁存器，第二锁存器和反馈发生器，其中反馈发生器基于前级数据信号向Delta加法器提供反馈信号由第一锁存器提供，使得Δ加法器提供前级加法信号。 Sigma加法器执行累加以向第一锁存器提供累加信号，使得第一锁存器向第二锁存器提供前级数据信号，以使第二锁存器能够输出数字输出信号。

2. 发明申请

US20050001750A1 DELTA-SIGMA MODULATOR 失效
标题翻译： DELTA-SIGMA调制器
公开(公告)号：US20050001750A1
公开(公告)日：2005-01-06
申请号：US10847399
申请日：2004-05-18
申请人： Li-Sheng Lo , Tung-Tsai Liao
发明人： Li-Sheng Lo , Tung-Tsai Liao
IPC分类号： H03M7/32 , H03M7/36 , H03M3/00
CPC分类号： H03M7/3015 , H03M7/3026 , H03M7/3031
摘要： A Delta-Sigma modulator is disclosed, which has a Delta adder, a Sigma adder, a first latch, a second latch and a feedback generator, wherein the feedback generator provides a feedback signal to the Delta adder based on a pre-stage data signal provided by the first latch, so that the Delta adder provides a pre-stage addition signal. The Sigma adder performs an accumulation to provide an accumulative signal to the first latch, so that the first latch provides a pre-stage data signal to the second latch to enable the second latch to output a digital output signal.
摘要翻译：公开了一种Δ-Σ调制器，其具有Δ加法器，Sigma加法器，第一锁存器，第二锁存器和反馈发生器，其中反馈发生器基于前级数据信号向Delta加法器提供反馈信号由第一锁存器提供，使得Δ加法器提供前级加法信号。 Sigma加法器执行累加以向第一锁存器提供累加信号，使得第一锁存器向第二锁存器提供前级数据信号，以使第二锁存器能够输出数字输出信号。

3. 发明授权

US08160276B2 Audio system and related method integrated with ultrasound communication functionality 有权
标题翻译：音频系统及相关方法与超声波通信功能相结合
公开(公告)号：US08160276B2
公开(公告)日：2012-04-17
申请号：US11965584
申请日：2007-12-27
申请人： Tung-Tsai Liao , Li-Sheng Lo
发明人： Tung-Tsai Liao , Li-Sheng Lo
IPC分类号： H04R3/00 , H04R5/02
CPC分类号： H04B11/00
摘要： Audio system and related method integrated with ultrasound communication functionality are provided. A communication transmitting device of proposed invention modulates a communication signal of communication functionality to a high-frequency sound and transmits the high-frequency sound by an ordinary audio transmitter. A communication receiving device of proposed invention receives the high-frequency sound with an ordinary audio receiver and demodulates it to retrieve the communication signal, and then the communication device can use the communication signal. The proposed audio sound transmitter/receiver can be implemented using low-cost audio speaker/microphone, such that a cost for implementing communication functionality can be reduced.
摘要翻译：提供了与超声波通信功能集成的音频系统和相关方法。所提出的发明的通信发送装置将通信功能的通信信号调制为高频声音，并由普通音频发送器发送高频声音。所提出的发明的通信接收装置利用普通的音频接收机接收高频声音并进行解调以取回通信信号，然后通信装置可以使用通信信号。所提出的音频发送器/接收器可以使用低成本音频扬声器/麦克风来实现，从而可以降低用于实现通信功能的成本。

4. 发明申请

US20080165622A1 AUDIO SYSTEM AND RELATED METHOD INTEGRATED WITH ULTRASOUND COMMUNICATION FUNCTIONALITY 有权
标题翻译：音频系统和相关方法与超声波通信功能集成
公开(公告)号：US20080165622A1
公开(公告)日：2008-07-10
申请号：US11965584
申请日：2007-12-27
申请人： Tung-Tsai Liao , Li-Sheng Lo
发明人： Tung-Tsai Liao , Li-Sheng Lo
IPC分类号： G10K11/00
CPC分类号： H04B11/00
摘要： Audio system and related method integrated with ultrasound communication functionality are provided. A communication transmitting device of proposed invention modulates a communication signal of communication functionality to a high-frequency sound and transmits the high-frequency sound by an ordinary audio transmitter. A communication receiving device of proposed invention receives the high-frequency sound with an ordinary audio receiver and demodulates it to retrieve the communication signal, and then the communication device can use the communication signal. The proposed audio sound transmitter/receiver can be implemented using low-cost audio speaker/microphone, such that a cost for implementing communication functionality can be reduced.
摘要翻译：提供了与超声波通信功能集成的音频系统和相关方法。所提出的发明的通信发送装置将通信功能的通信信号调制为高频声音，并由普通音频发送器发送高频声音。所提出的发明的通信接收装置利用普通的音频接收机接收高频声音并进行解调以取回通信信号，然后通信装置可以使用通信信号。所提出的音频发送器/接收器可以使用低成本音频扬声器/麦克风来实现，从而可以降低用于实现通信功能的成本。

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