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31. 发明授权

US4512013A Simultaneous transmission of speech and data over an analog channel 失效
标题翻译：通过模拟通道同时传输语音和数据
公开(公告)号：US4512013A
公开(公告)日：1985-04-16
申请号：US483879
申请日：1983-04-11
申请人： Randy D. Nash , Wai C. Wong
发明人： Randy D. Nash , Wai C. Wong
IPC分类号： H04J1/00 , H04J1/20 , H04L27/34 , H04M11/06 , H04J1/02
CPC分类号： H04J1/20 , H04L27/3483 , H04M11/062
摘要： The present invention relates to a technique for transmitting an entire analog speech signal and a modulated data signal over a transmission channel such as a common analog telephone speech channel. The present technique multiplexes the entire modulated data signal within the normal analog speech signal frequency band where the speech is present and its signal power density characteristic is at a low level. Separation of the speech and data signals at the receiver is effected by recovering the modulation carrier frequency and demodulating the received signal to recover the data signal. The data signal is then remodulated with the recovered carrier and is convolved with an arbitrary channel impulse response in an adaptive filter whose output signal is subtracted from the received composite data and speech signal to generate the recovered speech signal. To improve the recovered speech signal, a least mean square algorithm is used to update the arbitrary channel impulse response output signal of the adaptive filter.
摘要翻译：本发明涉及通过诸如公共模拟电话语音信道的传输信道发送整个模拟语音信号和调制数据信号的技术。本技术将整个调制数据信号复用在语音存在的正常模拟语音信号频带内，其信号功率密度特性处于低电平。通过恢复调制载波频率并解调接收到的信号以恢复数据信号来实现接收机处的语音和数据信号的分离。数据信号然后用恢复的载波再调制，并在自适应滤波器中与任意信道脉冲响应进行卷积，其中从接收到的合成数据和语音信号中减去其输出信号以产生恢复的语音信号。为了改善恢复的语音信号，使用最小均方算法来更新自适应滤波器的任意信道脉冲响应输出信号。

32. 发明授权

US07071207B2 Preparation and use of 1,5,6,7-tetrahydropyrrolo[3,2-c]pyridine derivatives for treatment of obesity 失效
标题翻译： 1,5,6,7-四氢吡咯并[3,2-c]吡啶衍生物的制备和用途，用于治疗肥胖症
公开(公告)号：US07071207B2
公开(公告)日：2006-07-04
申请号：US10487976
申请日：2002-09-24
申请人： Roger A. Smith , Stephen J. O'Connor , Wai C. Wong , Soongyu Choi , Harold C. Kluender , Jianmei Fan , Zhonghua Zhang , Rico C. Lavoie , Brent L. Podlogar
发明人： Roger A. Smith , Stephen J. O'Connor , Wai C. Wong , Soongyu Choi , Harold C. Kluender , Jianmei Fan , Zhonghua Zhang , Rico C. Lavoie , Brent L. Podlogar
IPC分类号： A61K31/40 , A61K31/395 , A61K31/437 , C07D471/04 , C07D471/14
CPC分类号： C07D471/04
摘要： This invention relates to 1,5,6,7-tetrahydropyrrolo[3,2-c]pyridine derivatives which have been found to suppress appetite and induce weight loss. The invention also provides methods for synthesis of the compounds, pharmaceutical compositions comprising the compounds, and methods of using such compositions for inducing weight loss and treating obesity and obesity-related disorders.
摘要翻译：本发明涉及已被发现抑制食欲并引起体重减轻的1,5,6,7-四氢吡咯并[3,2-c]吡啶衍生物。本发明还提供了合成化合物的方法，包含该化合物的药物组合物，以及使用这些组合物诱导体重减轻和治疗肥胖症和肥胖相关疾病的方法。

33. 发明授权

US4710006A Shutter release and film advance interlock mechanism 失效
标题翻译：快门释放和胶片提前互锁机制
公开(公告)号：US4710006A
公开(公告)日：1987-12-01
申请号：US46767
申请日：1987-05-07
申请人： Wai C. Wong
发明人： Wai C. Wong
IPC分类号： G03B9/68 , G03B17/42
CPC分类号： G03B17/42
摘要： A camera is provided wherein accidental manual rotation of a thumbwheel to advance film in the camera is prevented whenever the shutter is opened to take a picture. According to the invention, when a trigger button is manually depressed, a high energy member in a cocked position is unlatched to permit the high energy member to travel a first increment to momentarily open the shutter. The film advance thumbwheel remains locked by a locking member to prevent any rotation of the thumbwheel. When the trigger button is manually released to return to its original position, the trigger button disengages from the high energy member, permitting the high energy member to travel a second increment. During its second increment of travel, the high energy member moves the locking member out of locking relation with the thumbwheel. Thus the thumbwheel cannot be operated to advance film until picture-taking is completed.

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