Patents Assigned to Digital Equipment
  • Patent number: 11724505
    Abstract: A maintenance system for spray head includes an ink cavity of the spray head communication with the external environment through spray holes. The ink cavity of the spray head is connected with a first accommodating cavity of a first regulating device through a pipeline; when the ink in the ink circulation loop is in a circulating flow state, the ink flows into the ink cavity of the spray head from the first accommodating cavity; because the first accommodating cavity and the ink cavity of the spray head are in a communication state, the change of the first air pressure within the first negative pressure range can make the ink in the first accommodating cavity and the ink cavity of the spray head oscillate at the same time.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: August 15, 2023
    Assignee: SHENZHEN CNTOP DIGITAL EQUIPMENT CO., LTD.
    Inventors: Shuzhang Liao, Hua Jiang, Leile Zeng, Wei Lin
  • Patent number: 11161361
    Abstract: An eccentric wheel and an inkjet printer including the eccentric wheel are provided. The eccentric wheel includes two groups of eccentric wheel bodies, mounted on a base of a trolley and configured to drive a print head to move backward and forward and move leftward and rightward in a print head groove. A distance from an outer edge to a rotation center of each of the eccentric wheel bodies is gradually changed. The outer edge of each of the eccentric wheel bodies is in contact with a side edge of the print head. One group of the eccentric wheel bodies are arranged in a forward and backward movement direction of the print head, and the other group of the eccentric wheel bodies are arranged in a leftward and rightward movement direction of the print head.
    Type: Grant
    Filed: July 25, 2017
    Date of Patent: November 2, 2021
    Assignee: SHENZHEN RUNTIANZHI DIGITAL EQUIPMENT CO., LTD.
    Inventor: Hong Jiang
  • Publication number: 20210162785
    Abstract: An eccentric wheel and an inkjet printer including the eccentric wheel are provided. The eccentric wheel includes two groups of eccentric wheel bodies, mounted on a base of a trolley and configured to drive a print head to move backward and forward and move leftward and rightward in a print head groove. A distance from an outer edge to a rotation center of each of the eccentric wheel bodies is gradually changed. The outer edge of each of the eccentric wheel bodies is in contact with a side edge of the print head. One group of the eccentric wheel bodies are arranged in a forward and backward movement direction of the print head, and the other group of the eccentric wheel bodies are arranged in a leftward and rightward movement direction of the print head.
    Type: Application
    Filed: July 25, 2017
    Publication date: June 3, 2021
    Applicant: SHENZHEN RUNTIANZHI DIGITAL EQUIPMENT CO., LTD.
    Inventor: Hong JIANG
  • Patent number: 10913274
    Abstract: A nozzle mount arrangement includes a substrate and a plurality of nozzle assemblies evenly distributed in a length direction of the substrate. The nozzle assembly includes a spray tongue connected to the substrate, a plurality of nozzles evenly distributed in a length direction of the spray tongue, and a locking mechanism provided on the spray tongue for pressing the spray tongue and the nozzle. An inkjet printer includes said nozzle mount arrangement. The nozzle mount arrangement and the inkjet printer have multiple nozzles on the spray tongue, thus the number of spray tongues is reduced, thereby reducing the assembly and maintenance costs of the spray tongues.
    Type: Grant
    Filed: September 30, 2017
    Date of Patent: February 9, 2021
    Assignee: SHENZHEN RUNTIANZHI DIGITAL EQUIPMENT CO., LTD.
    Inventors: Li Li, Longfei Zeng, Binbin Chen, Bizhen Liao, Hong Jiang
  • Patent number: 10759197
    Abstract: A digital printing device, comprising a suction transport means (1). The suction transport means (1) comprises a transport belt (11) used for transporting a sheet material. At least one first suction box (14), which is used for sucking the sheet material on the transport belt (11) by means of negative pressure during transport, is provided in the space defined by the transport belt (11). Multiple first suction holes in communication with the first suction box (14) are provided on the transport belt (11). At least one side of the first suction box (14) is provided with a movable door (15) which moves in a direction perpendicular to the transport direction to make the first suction box (14) fit the sheet material to maintain a negative pressure state. Using the transport belt (11) during printing, the digital printing device avoids the problem of poor registration accuracy, and improves the printing effect.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: September 1, 2020
    Assignee: SHENZHEN HANWAY INDUSTRIAL DIGITAL EQUIPMENT CO., LTD.
    Inventors: Fuwei Yang, Yifa Zhao, Jizhou Li, Qin Yang, Jianqiang Zhang, Ting Chen, Hong Tian
  • Publication number: 20200230946
    Abstract: The present invention provides a textile digital printing machine including: a conveying device; a platen which conveys a textile along with the conveying device; a treatment liquid machine, a drying module, a pressing module and a printing module which are arranged successively along a conveying path of the textile. The treatment liquid machine includes a plurality of spray heads for spraying the treatment liquid onto the textile. The drying module is configured to heat the textile which has been sprayed with the treatment liquid, so that the treatment liquid is absorbed by the textile. The pressing module is configured to press the textile to keep the textile flat and heat the platen. The printing module is configured to spray ink onto the textile to thereby print patterns thereon. The heated platen is configured to dry the ink so that the ink is absorbed by the textile.
    Type: Application
    Filed: October 20, 2017
    Publication date: July 23, 2020
    Applicant: SHENZHEN CNTOP DIGITAL EQUIPMENT CO., LTD.
    Inventors: Qixiang Li, Tongze Tang, Shuzhang Liao, Chao Zhang, Kris Otto Friedrich, Blair Kristine Dorsey
  • Publication number: 20190193428
    Abstract: A digital printing device, comprising a suction transport means (1). The suction transport means (1) comprises a transport belt (11) used for transporting a sheet material. At least one first suction box (14), which is used for sucking the sheet material on the transport belt (11) by means of negative pressure during transport, is provided in the space defined by the transport belt (11). Multiple first suction holes in communication with the first suction box (14) are provided on the transport belt (11). At least one side of the first suction box (14) is provided with a movable door (15) which moves in a direction perpendicular to the transport direction to make the first suction box (14) fit the sheet material to maintain a negative pressure state. Using the transport belt (11) during printing, the digital printing device avoids the problem of poor registration accuracy, and improves the printing effect.
    Type: Application
    Filed: May 22, 2017
    Publication date: June 27, 2019
    Applicant: SHENZHEN HANDWAY INDUSTRIAL DIGITAL EQUIPMENT CO., LTD.
    Inventors: Fuwei Yang, Yifa Zhao, Jizhou Li, Qin Yang, Jianqiang Zhang, Ting Chen, Hong Tian
  • Patent number: 8760445
    Abstract: The present invention discloses a method of brightness correction for the electronic display, which consists of the following steps: take pictures of the electronic display; get the characteristic values of all the light-emitting components in the pictures; calculate the correction values of each light-emitting component with the characteristic values; correct the brightness of the display with the correction values. The present invention reduces the time cost of measuring the actual brightness values of the light-emitting components, and improves the efficiency of correcting the brightness uniformity of the electronic display.
    Type: Grant
    Filed: September 18, 2009
    Date of Patent: June 24, 2014
    Assignee: Zhongqing Digital Equipment Co., Ltd.
    Inventors: Yin-liang Shao, Lei Yang, Li Guan
  • Publication number: 20120069030
    Abstract: A method of uniform distribution for increasing a display rate. For data to be displayed, dividing a complete effective output enable (OE) time that is greater than one serial shift cycle into several unit serial shift cycles and uniformly distributing the effective OE time for display. The method implements the uniform distribution of the display time to the maximum extent by using an OE signal under the condition that the whole display time remains unchanged, thereby increasing effective output number of the uniform distribution, uniformly maintaining a display effect and steadily improving a refresh rate effect, so as to effectively increase a display quality and avoid a significant loss of brightness.
    Type: Application
    Filed: September 19, 2011
    Publication date: March 22, 2012
    Applicant: ZHONGQING DIGITAL EQUIPMENT CO., LTD.
    Inventor: Song Shang
  • Publication number: 20030135555
    Abstract: In a computerized distributed mail system, a plurality of client computers are connected to each other via a network. Each client computer is configured to execute client mail application programs. A mail service system is also connected to the network. The system is for executing server mail programs on server computers. The mail service system includes an index server for storing mail messages in message files, and for storing a full-text index of the mail messages. In addition, the system includes means for accessing the mail messages by the plurality of client computers by searching the full-text index using queries.
    Type: Application
    Filed: February 6, 2001
    Publication date: July 17, 2003
    Applicant: Digital Equipment Corporation
    Inventors: Andrew D. Birrel, Edward P. Wobber, Michael Schroeder
  • Patent number: 6320735
    Abstract: An electrostatic discharge (ESD) protection technique protects a semiconductor device against electrostatic discharge events. The technique uses an ESD protection circuit that includes Darlington-connected clamps between the protected I/O pad and a reference voltage conductor with circuitry to prevent leakage. A control signal that is used to control the clamps is derived from another pad.
    Type: Grant
    Filed: September 23, 1999
    Date of Patent: November 20, 2001
    Assignee: Digital Equipment Corporation
    Inventor: Warren R. Anderson
  • Patent number: 6314392
    Abstract: In a computerized method a continuous signal is segmented in order to determine statistically stationary units of the signal. The continuous signal is sampled at periodic intervals to produce a timed sequence of digital samples. Fixed numbers of adjacent digital samples are grouped into a plurality of disjoint sets or frames. A statistical distance between adjacent frames is determined. The adjacent sets are merged into a larger set of samples or cluster if the statistical distance is less than a predetermined threshold. In an iterative process, the statistical distance between the adjacent sets are determined, and as long as the distance is less than the predetermined threshold, the sets are iteratively merged to segment the signal into statistically stationary units.
    Type: Grant
    Filed: September 20, 1996
    Date of Patent: November 6, 2001
    Assignee: Digital Equipment Corporation
    Inventors: Brian S. Eberman, William D. Goldenthal
  • Patent number: 6289312
    Abstract: In a computer system, a method enables an application program to interact aurally with a user. The application program including calls to perform input and output. The calls include parameters. The method identifies functions of an input/output driver. The functions are called by the calls of the application program. The functions are augmented to process the parameters according to an execution context of the application program. The augmented functions are linked to speech processing modules. The speech processing modules generating aural output dependent on the parameters of the calls and the execution context of the application program. The speech processing modules include speak line, speak word, speak letter, speak icon modules for generating the aural output as spoken lines, words, and letters. In addition, the aural output can be modified by voice, personality, and background modules. Graphic icons can be rendered as distinctive sounds.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: September 11, 2001
    Assignee: Digital Equipment Corporation
    Inventor: T. V. Raman
  • Patent number: 6286109
    Abstract: A method and apparatus for controlling heat generation within a battery-powered portable computer. One aspect is directed to a computer including a battery, a battery charging circuit operatively connected to the battery to charge the battery at a charging rate, and a temperature detection and control circuit, coupled to the battery charging circuit, that detects a temperature within the computer and provides a control signal to the battery charging circuit having a control value based on the temperature detected. The battery charging circuit is responsive to the control value of the control signal to alter the charging rate. Another aspect is directed to a method for controlling heat dissipation within a portable electronic device having a battery and a battery charging circuit.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: September 4, 2001
    Assignee: Digital Equipment Corporation
    Inventor: Scott L. Pirdy
  • Patent number: 6243761
    Abstract: A computer implemented method adjusts a Web page including multimedia content according to the effective bandwidth and/or latency monitored on a network path connecting a server computer storing the Web page, and a client computer requesting the Web page. In response to receiving a request for the Web page in the server computer from the client computer, the server computer, or some other computer closely connected to the server computer monitors the effective bandwidth and/or latency of the network path. Using the measured effective bandwidth and/or latency, the content of the Web page is dynamically adjusted by the server computer while sending the Web page to the client.
    Type: Grant
    Filed: March 26, 1998
    Date of Patent: June 5, 2001
    Assignee: Digital Equipment Corporation
    Inventors: Jeffrey C. Mogul, Lawrence S. Brakmo
  • Patent number: 6243708
    Abstract: A method for locating a particularly relevant position within a multimedia steam includes identifying a multimedia stream based upon a query. The locations relevant to the query within the multimedia stream are also identified. The relevance of each of the identified locations is ranked and a particularly relevant one of the identified locations within the multimedia stream is determined based upon the ranking.
    Type: Grant
    Filed: December 3, 1998
    Date of Patent: June 5, 2001
    Assignee: Digital Equipment Corporation
    Inventors: Arjen P. deVries, Michael Sokolov, David E. Kovalcin, Brian Eberman
  • Patent number: 6212535
    Abstract: In a computerized method for messaging, a Web page includes an embedded tag specifying a message extension program. The Web page is requested from a Web server by a Web browser of a first client computer connected to the Web server computer by a communications network. The extension program corresponding to the message tag is retrieved. A multimedia message is recorded as digital signals in a file of the client computer using the extension program. The file is sent to a second client computer as an electronic mail message.
    Type: Grant
    Filed: September 19, 1996
    Date of Patent: April 3, 2001
    Assignee: Digital Equipment Corporation
    Inventors: Christopher M. Weikart, William D. Goldenthal, Debajit Ghosh, Kenneth F. Alden, Brian S. Eberman
  • Patent number: 6204859
    Abstract: A method and an apparatus determine a color for pixels in a graphics system in which images are defined by pixels. Multiple fragments of an image may be visible in any given pixel. Each visible fragment has a fragment value that includes the color of that fragment. For such given pixel, up to a predetermined number of the fragment values are stored. When a new fragment is visible in the given pixel, one of the fragment values is discarded to determine which fragment values are stored and subsequently used to generate the color of the pixel. The discarded fragment value may be the new fragment value or one of the stored fragment values. Various strategies can be used to determine which fragment value is discarded. One such scheme selects the stored fragment value with the greatest Z-depth. Another scheme selects the stored fragment value that produces the smallest color difference from the new fragment value.
    Type: Grant
    Filed: October 15, 1997
    Date of Patent: March 20, 2001
    Assignee: Digital Equipment Corporation
    Inventors: Norman P. Jouppi, Joel J. McCormack, Chun-Fa Chang
  • Patent number: 6199153
    Abstract: A computing apparatus has a mode selector configured to select one of a long-bus mode corresponding to a first memory size and a short-bus mode corresponding to a second memory size which is less than the first memory size. An address bus of the computing apparatus is configured to transmit an address consisting of address bits defining the first memory size and a subset of the address bits defining the second memory size. The address bus has N communication lines each configured to transmit one of a first number of bits of the address bits defining the first memory size in the long-bus mode and M of the N communication lines each configured to transmit one of a second number of bits of the address bits defining the second memory size in the short-bus mode, where M is less than N.
    Type: Grant
    Filed: June 18, 1998
    Date of Patent: March 6, 2001
    Assignee: Digital Equipment Corporation
    Inventors: Rahul Razdan, Solomon J. Katzman, James B. Keller, Richard E. Kessler
  • Patent number: 6195377
    Abstract: The present invention provides a sense amplifier that incorporates a logic function. Specifically, that logic function is incorporated into the sense amplifier such that the propagation time of the logic function is avoided and the effective data set-up time of the sense amplifier is reduced. The sense amplifier includes a pair of discharge paths having a true or a complementary version of the logic function associated therewith. When the true or complementary version of the logic function is asserted, one of the discharge paths is turned-on. The output signal that is associated with that discharge path is discharged to a logic low level and the other output signal is pulled to a logic high level. Accordingly, the resulting logic level of the logic function is generated and latched using only the sense amplifier circuit.
    Type: Grant
    Filed: February 1, 1999
    Date of Patent: February 27, 2001
    Assignee: Digital Equipment Corporation
    Inventors: Shane Lewis Bell, Bruce Alan Gieseke