Patents by Inventor Pai WANG
Pai WANG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230372014Abstract: A surgical robot includes a camera arm, a surgical arm, an input part, and a control device coupled to the camera arm, the surgical arm, and the input part. The control device is configured to: acquire an operation image of surgical area acquired by the camera arm; if the operation image contains a sub-image of the surgical arm, recognize a feature part of the surgical arm from the sub-image as a first feature part; acquire a control command inputted by the input part, obtain a kinematic model of the surgical arm according to the control instruction; obtain a second feature part matching the first feature part from the kinematic model; obtain actual motion information of the first feature part and target motion information of the second feature part; compare the actual motion information with the target motion information to determine whether the surgical robot has a motion error.Type: ApplicationFiled: May 10, 2021Publication date: November 23, 2023Inventors: YUANQIAN GAO, JIANCHEN WANG, PAI WANG
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Publication number: 20230363841Abstract: A surgical robot, a graphical control device and a graphical display method thereof, the surgical robot including: a display; at least two manipulators; and a controller configured to: when a first manipulator is detected to be in an operational mode, obtain state information of the joint assembly sensed by the sensors of the first manipulator; obtain a kinematic model of the first manipulator; acquire configuration parameters of a virtual camera; combine the configuration parameters of the virtual camera, the kinematic model of the first manipulator and the state information thereof so as to generate an image model of the first manipulator from a viewing point of the virtual camera; and display the image model of the first manipulator in a first display window of the display. The surgical robot facilitates doctors observing the posture state of the manipulators that are used during a surgical process.Type: ApplicationFiled: December 3, 2020Publication date: November 16, 2023Inventors: Yuanqian GAO, Jianchen WANG, Pai WANG
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Patent number: 10013374Abstract: A bidirectional communication method between a master terminal and a slave terminal on a single transmission line includes the master terminal transmitting an initial message, a slave number and a master acknowledgement signal. After acknowledgement of the slave terminal, the master terminal transmits an address of the slave terminal and a master acknowledgement signal. After acknowledgement of the slave terminal, the master terminal transmits data and a master acknowledgement signal. After acknowledgement of the slave terminal, the master terminal transmits a master No-acknowledgement signal. And the slave terminal transmits a slave acknowledgement signal.Type: GrantFiled: January 27, 2016Date of Patent: July 3, 2018Assignee: RichWave Technology Corp.Inventors: Ching-Shou Huang, Tian-Tsai Chang, Tzu-Pai Wang, Zhuo Fu
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Publication number: 20160224488Abstract: A bidirectional communication method between a master terminal and a slave terminal on a single transmission line includes the master terminal transmitting an initial message, a slave number and a master acknowledgement signal. After acknowledgement of the slave terminal, the master terminal transmits an address of the slave terminal and a master acknowledgement signal. After acknowledgement of the slave terminal, the master terminal transmits data and a master acknowledgement signal. After acknowledgement of the slave terminal, the master terminal transmits a master No-acknowledgement signal. And the slave terminal transmits a slave acknowledgement signal.Type: ApplicationFiled: January 27, 2016Publication date: August 4, 2016Inventors: Ching-Shou Huang, Tian-Tsai Chang, Tzu-Pai Wang, Zhuo Fu
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Publication number: 20070286270Abstract: A read channel apparatus is disclosed for reading data recorded on an optical storage system at a predetermined baud rate. The apparatus asynchronously samples an analog read signal generating from the optical storage system and subtracts an estimated DC offset from the asynchronous sample values to generate a sequence of asynchronous DC-removed sample values. The asynchronous DC-removed sample values are separately interpolated by two interpolators to generate a sequence of synchronous even-time sample values and a sequence of synchronous odd-time sample values respectively. The synchronous even-time and odd-time sample values are separately equalized by two equalizers in accordance with a target spectrum to generate a sequence of even-time equalized sample values and a sequence of odd-time equalized sample values respectively. A DC offset estimator generates the estimated DC offset from the even-time equalized sample values and the odd-time equalized sample values.Type: ApplicationFiled: March 27, 2007Publication date: December 13, 2007Applicant: MEDIATEK INC.Inventors: Ke-Chiang Huang, Tzu-Pai Wang
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Patent number: 7308061Abstract: A read channel apparatus is disclosed for reading data recorded on an optical storage system at a predetermined baud rate. The apparatus asynchronously samples an analog read signal generating from the optical storage system and subtracts an estimated DC offset from the asynchronous sample values to generate a sequence of asynchronous DC-removed sample values. The asynchronous DC-removed sample values are separately interpolated by two interpolators to generate a sequence of synchronous even-time sample values and a sequence of synchronous odd-time sample values respectively. The synchronous even-time and odd-time sample values are separately equalized by two equalizers in accordance with a target spectrum to generate a sequence of even-time equalized sample values and a sequence of odd-time equalized sample values respectively. A DC offset estimator generates the estimated DC offset from the even-time equalized sample values and the odd-time equalized sample values.Type: GrantFiled: March 27, 2007Date of Patent: December 11, 2007Assignee: Mediatek Inc.Inventors: Ke-Chiang Huang, Tzu-Pai Wang
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Patent number: 7245658Abstract: A read channel apparatus is disclosed for reading data recorded on an optical storage system. An exemplary sampling device samples an analog read signal generating from the optical storage system to generate a sequence of sample values. A subtractor subtracts an estimated DC offset from the sample values to generate a sequence of DC-removed sample values. An equalizer equalizes DC-removed sample values in accordance with a target spectrum to generate a sequence of equalized sample values. First and second interpolators interpolate the equalized sample values to respectively generate sequences of even-time sample values and odd-time sample values. A data sequence composed of the even-time and the odd-time sample values is substantially synchronized to the baud rate. A timing recovery controller controls the interpolators to synchronize the even-time and odd-time sample values to the baud rate.Type: GrantFiled: February 13, 2006Date of Patent: July 17, 2007Assignee: Mediatek, Inc.Inventors: Tzu-Pai Wang, Meng-Ta Yang, Pi-Hai Liu
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Patent number: 7212567Abstract: A read channel apparatus is disclosed for reading data recorded on an optical storage system at a predetermined baud rate. The apparatus asynchronously samples an analog read signal generating from the optical storage system and subtracts an estimated DC offset from the asynchronous sample values to generate a sequence of asynchronous DC-removed sample values. The asynchronous DC-removed sample values are separately interpolated by two interpolators to generate a sequence of synchronous even-time sample values and a sequence of synchronous odd-time sample values respectively. The synchronous even-time and odd-time sample values are separately equalized by two equalizers in accordance with a target spectrum to generate a sequence of even-time equalized sample values and a sequence of odd-time equalized sample values respectively. A DC offset estimator generates the estimated DC offset from the even-time equalized sample values and the odd-time equalized sample values.Type: GrantFiled: May 11, 2005Date of Patent: May 1, 2007Assignee: Mediatek Inc.Inventors: Ke-Chiang Huang, Tzu-Pai Wang
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Patent number: 7180963Abstract: A digital receiver is enabled to process modulated signals at various data rates including a sampling circuit for receiving modulated signals and outputting digitalized sampled signals, a matched filter for expelling noise from digitalized sampled signals at a first data rate and at a second data rate and generating in-phase and quadrature-phase signals, a barker code correlator for depreading digitalized sampled signals at first data rate, a channel equalizer which counteracts co-channel interferences by using equalizer coefficients obtained from a plurality of noise whitening coefficients so as to generate a sequence of symbol decisions therefrom, a CCK correlator coupled to the channel equalizer for decoding signals at the second data rate and at a third data rate, a first quantization filter for recovering transmitted signals at the first data rate, and a second quantization fitler for recovering transmitted signals at the second data rate and at the third data rate.Type: GrantFiled: November 25, 2002Date of Patent: February 20, 2007Assignee: ALI CorporationInventors: Tzu-Pai Wang, Chun-Hsien Lee
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Publication number: 20060133255Abstract: A read channel apparatus is disclosed for reading data recorded on an optical storage system. An exemplary sampling device samples an analog read signal generating from the optical storage system to generate a sequence of sample values. A subtractor subtracts an estimated DC offset from the sample values to generate a sequence of DC-removed sample values. An equalizer equalizes DC-removed sample values in accordance with a target spectrum to generate a sequence of equalized sample values. First and second interpolators interpolate the equalized sample values to respectively generate sequences of even-time sample values and odd-time sample values. A data sequence composed of the even-time and the odd-time sample values is substantially synchronized to the baud rate. A timing recovery controller controls the interpolators to synchronize the even-time and odd-time sample values to the baud rate.Type: ApplicationFiled: February 13, 2006Publication date: June 22, 2006Inventors: Tzu-Pai Wang, Meng-Ta Yang, Pi-Hai Liu
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Publication number: 20050220184Abstract: A read channel apparatus is disclosed for reading data recorded on an optical storage system at a predetermined baud rate. The apparatus asynchronously samples an analog read signal generating from the optical storage system and subtracts an estimated DC offset from the asynchronous sample values to generate a sequence of asynchronous DC-removed sample values. The asynchronous DC-removed sample values are separately interpolated by two interpolators to generate a sequence of synchronous even-time sample values and a sequence of synchronous odd-time sample values respectively. The synchronous even-time and odd-time sample values are separately equalized by two equalizers in accordance with a target spectrum to generate a sequence of even-time equalized sample values and a sequence of odd-time equalized sample values respectively. A DC offset estimator generates the estimated DC offset from the even-time equalized sample values and the odd-time equalized sample values.Type: ApplicationFiled: May 11, 2005Publication date: October 6, 2005Inventors: Ke-Chiang Huang, Tzu-Pai Wang
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Patent number: 6904084Abstract: A read channel apparatus is disclosed for reading data recorded on an optical storage system at a predetermined baud rate. The apparatus asynchronously samples an analog read signal generating from the optical storage system and subtracts an estimated DC offset from the asynchronous sample values to generate a sequence of asynchronous DC-removed sample values. The asynchronous DC-removed sample values are separately interpolated by two interpolators to generate a sequence of synchronous even-time sample values and a sequence of synchronous odd-time sample values respectively. The synchronous even-time and odd-time sample values are separately equalized by two equalizers in accordance with a target spectrum to generate a sequence of even-time equalized sample values and a sequence of odd-time equalized sample values respectively. A DC offset estimator generates the estimated DC offset from the even-time equalized sample values and the odd-time equalized sample values.Type: GrantFiled: September 5, 2001Date of Patent: June 7, 2005Assignee: Mediatek IncorporationInventors: Ke-Chiang Huang, Tzu-Pai Wang
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Publication number: 20040101068Abstract: A digital receiver is enabled to process modulated signals at various data rates including a sampling circuit for receiving modulated signals and outputting digitalized sampled signals, a matched filter for expelling noise from digitalized sampled signals at a first data rate and at a second data rate and generating in-phase and quadrature-phase signals, a barker code correlator for depreading digitalized sampled signals at first data rate, a channel equalizer which counteracts co-channel interferences by using equalizer coefficients obtained from a plurality of noise whitening coefficients so as to generate a sequence of symbol decisions therefrom, a CCK correlator coupled to the channel equalizer for decoding signals at the second data rate and at a third data rate, a first quantization filter for recovering transmitted signals at the first data rate, and a second quantization fitler for recovering transmitted signals at the second data rate and at the third data rate.Type: ApplicationFiled: November 25, 2002Publication date: May 27, 2004Inventors: Tzu-Pai Wang, Chun-Hsien Lee
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Publication number: 20030043898Abstract: A read channel apparatus is disclosed for reading data recorded on an optical storage system at a predetermined baud rate. The apparatus asynchronously samples an analog read signal generating from the optical storage system and subtracts an estimated DC offset from the asynchronous sample values to generate a sequence of asynchronous DC-removed sample values. The asynchronous DC-removed sample values are separately interpolated by two interpolators to generate a sequence of synchronous even-time sample values and a sequence of synchronous odd-time sample values respectively. The synchronous even-time and odd-time sample values are separately equalized by two equalizers in accordance with a target spectrum to generate a sequence of even-time equalized sample values and a sequence of odd-time equalized sample values respectively. A DC offset estimator generates the estimated DC offset from the even-time equalized sample values and the odd-time equalized sample values.Type: ApplicationFiled: September 5, 2001Publication date: March 6, 2003Applicant: Acer Laboratories, Inc.Inventors: Ke-Chiang Huang, Tzu-Pai Wang