Patents Assigned to Kopin Corporation
  • Patent number: 10636347
    Abstract: A method of driving a pixel array includes providing a ramp signal to one or more columns of the pixel array. For each cycle of the ramp signal, the method further includes providing a first row driving signal to at least a first row of the pixel array and a second row driving signal to a second row of the pixel array. A pixel array driver may include a ramp signal generator configured to produce a ramp signal, a first amplifier configured to receive the ramp signal and produce a first amplified ramp signal, and a second amplifier configured to receive the ramp signal and produce a second amplified ramp signal. The first amplified ramp signal may be electrically connected to a first set of pixels of a pixel array, and the second amplified ramp signal may be electrically connected to a second set of pixels of the pixel array.
    Type: Grant
    Filed: April 12, 2019
    Date of Patent: April 28, 2020
    Assignee: Kopin Corporation
    Inventors: Jin Kuk Kim, Yong Seok Seo, Seung Youb Kim, Jang Ho Kim, Frederick Herrmann
  • Patent number: 10627860
    Abstract: A wireless hands-free portable headset computer with a micro display arranged near but below a wearer's eye in a peripheral vision area not blocking the wearer's main line of sight. The headset computer can display an image or portions of an image, wherein the portions can be enlarged. The headset computer also can be equipped with peripheral devices, such as light sources and cameras that can emit and detect, respectively, visible light and invisible radiation, such as infrared radiation and ultraviolet radiation. The peripheral devices are controllable by the wearer by voice command or by gesture. The headset computer also can be broken down into component parts that are attachable to another article worn by an individual, such as a helmet or respirator mask.
    Type: Grant
    Filed: May 10, 2012
    Date of Patent: April 21, 2020
    Assignee: Kopin Corporation
    Inventors: Jeffrey J. Jacobsen, Christopher Parkinson, Stephen A. Pombo
  • Patent number: 10580344
    Abstract: A method of scanning video information to a pixel array comprises, during a first active row interval, setting a column signal line to an initial voltage, asserting a first row signal line of the pixel array, setting the column line to a desired voltage, and de-asserting the first row signal line when the column signal line is at the desired voltage. The method further comprises, during a second active row interval occurring after an amount of time, setting the column signal line to the initial voltage, asserting the first row signal line of the pixel array, and de-asserting the first row signal line while the column signal line is at the initial voltage. The method further includes, during the second active row interval, asserting a second row signal line, and maintaining the assertion of the second row line for a period of time after de-asserting the first row signal line.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: March 3, 2020
    Assignee: Kopin Corporation
    Inventor: Frederick Herrmann
  • Patent number: 10459215
    Abstract: A video display device includes an eyepiece; and a display panel that includes a display plane that has a diagonal length that is not greater than 40 mm, wherein the eyepiece includes a first lens group and a second lens group; the first lens group includes a first element that has a first optical surface on the side of the display panel and a second optical surface on the opposite side, wherein the first optical surface has a negative refractive power, and an outer region of the second optical surface has a negative curvature and is convex; the second lens group includes, a second element that has a Fresnel surface facing the side opposite to the display panel and having a positive refractive power, and a third element that has a Fresnel surface facing the side of the display panel and having a positive refractive power.
    Type: Grant
    Filed: December 20, 2017
    Date of Patent: October 29, 2019
    Assignee: KOPIN CORPORATION
    Inventor: Yoichi Iba
  • Patent number: 10402162
    Abstract: Feedback mechanisms to the user of a Head Mounted Display (HMD) are provided. It is important to provide feedback to the user when speech is recognized as soon as possible after the user utters a voice command. The HMD displays and/or audibly renders an ASR acknowledgment in a manner that ensures the user that the HMD has received/understood his voiced command.
    Type: Grant
    Filed: January 9, 2019
    Date of Patent: September 3, 2019
    Assignee: KOPIN CORPORATION
    Inventors: Christopher Parkinson, James Woodall
  • Patent number: 10379386
    Abstract: Example embodiments include a method of reducing noise include forming a main signal and one or more reference signals at a beam-former based on at least two received audio signals, detecting voice activity at a voice activity detector, where the voice activity detector receives the main and reference signals and outputting a desired voice activity signal, adaptively cancelling noise at an adaptive noise canceller, where the adaptive noise canceller receives the main, reference, and desired voice activity signals and outputs an adaptive noise cancellation signal, and reducing noise at a noise reducer receiving the desired voice activity and adaptive noise cancellation signals and outputting a desired speech signal.
    Type: Grant
    Filed: October 6, 2017
    Date of Patent: August 13, 2019
    Assignee: Kopin Corporation
    Inventor: Dashen Fan
  • Patent number: 10379376
    Abstract: A wearable electronic display includes an eyewear frame having a front frame portion including a brow bar with lens frame rims extending from and below the brow bar. A display module can be mounted to the eyewear frame and have a microdisplay for generating images. The display module can have an image exit window positioned for directing viewable images to a user's eye. The display module can be positioned within a cavity in the front frame portion. A brow bar bracket can be mounted to a rear side of the brow bar. The brow bar bracket can have a shroud for covering the display module. The shroud can have a pupil aperture aligned with the exit window of the display module through which the user can view the viewable images.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: August 13, 2019
    Assignee: Kopin Corporation
    Inventors: Lee A. Kuczewski, Declan Halpin, Ernesto Carlos Martinez Villalpando
  • Publication number: 20190237002
    Abstract: A method of driving a pixel array includes providing a ramp signal to one or more columns of the pixel array. For each cycle of the ramp signal, the method further includes providing a first row driving signal to at least a first row of the pixel array and a second row driving signal to a second row of the pixel array. A pixel array driver may include a ramp signal generator configured to produce a ramp signal, a first amplifier configured to receive the ramp signal and produce a first amplified ramp signal, and a second amplifier configured to receive the ramp signal and produce a second amplified ramp signal. The first amplified ramp signal may be electrically connected to a first set of pixels of a pixel array, and the second amplified ramp signal may be electrically connected to a second set of pixels of the pixel array.
    Type: Application
    Filed: April 12, 2019
    Publication date: August 1, 2019
    Applicant: Kopin Corporation
    Inventors: Jin Kuk Kim, Yong Seok Seo, Seung Youb Kim, Jang Ho Kim, Frederick Herrmann
  • Patent number: 10339952
    Abstract: Systems and apparatuses are described to automatically balance acoustic channel sensitivity. A computer readable medium containing executable computer program instructions, which when executed by an acoustic signal processing system, cause the acoustic signal processing system to perform a process that includes calculating a long-term power level of a main acoustic signal to obtain an averaged main acoustic signal. Segments of the main acoustic signal are excluded from the averaged main acoustic signal using a desired voice activity detection signal. A long-term power level of a reference acoustic signal is calculated to obtain an averaged reference acoustic signal. Segments of the reference acoustic signal are excluded from the averaged reference acoustic signal using the desired voice activity detection signal. An amplitude correction signal is created using the averaged main acoustic signal and the averaged reference acoustic signal.
    Type: Grant
    Filed: October 14, 2017
    Date of Patent: July 2, 2019
    Assignee: KOPIN CORPORATION
    Inventor: Dashen Fan
  • Patent number: 10306389
    Abstract: Systems and methods are described to extract desired audio from an apparatus that is worn on a user's head. The apparatus includes a head wearable device. A first microphone is positioned on the head wearable device to receive a voice signal from the user A first signal from the first microphone is input as a main channel to a noise cancellation unit. A second microphone is coupled to the head wearable device. A first acoustic distance between the first microphone and the user's mouth is less than a second acoustic distance between the second microphone and the user's mouth when the head wearable device is on the user's head. A second signal from the second microphone is input as a reference channel to the noise cancellation unit. A first signal-to-noise ratio of the first signal is larger than a second signal-to-noise ratio of the second signal.
    Type: Grant
    Filed: October 18, 2015
    Date of Patent: May 28, 2019
    Assignee: KOPIN CORPORATION
    Inventors: Dashen Fan, Xi Chen, Hua Bao, Eric Frederic Davis
  • Patent number: 10304372
    Abstract: A method of driving a pixel array includes providing a ramp signal to one or more columns of the pixel array. For each cycle of the ramp signal, the method further includes providing a first row driving signal to at least a first row of the pixel array and a second row driving signal to a second row of the pixel array. A pixel array driver may include a ramp signal generator configured to produce a ramp signal, a first amplifier configured to receive the ramp signal and produce a first amplified ramp signal, and a second amplifier configured to receive the ramp signal and produce a second amplified ramp signal. The first amplified ramp signal may be electrically connected to a first set of pixels of a pixel array, and the second amplified ramp signal may be electrically connected to a second set of pixels of the pixel array.
    Type: Grant
    Filed: October 17, 2016
    Date of Patent: May 28, 2019
    Assignee: Kopin Corporation
    Inventors: Jin Kuk Kim, Yong Seok Seo, Seung Youb Kim, Jang Ho Kim, Frederick Herrmann
  • Patent number: 10298253
    Abstract: Systems and methods are described to time delay a signal output from an analog-to-digital converter (ADC). The ADC includes a digital sensor responsive to an analog field quantity. The digital sensor is configured to output an oversampled digital output signal at a sampling clock frequency. A time delay element is configured to receive as an input, the oversampled digital output signal and to output a time delayed oversampled digital output signal. A filter is configured to receive as an input the delayed oversampled digital output signal. The filter low pass filters and decimates to a lower sample rate the delayed oversampled digital output signal. An output includes a low pass filtered decimated delayed digital output signal, where the lower sample rate is less than the sampling clock frequency.
    Type: Grant
    Filed: April 8, 2018
    Date of Patent: May 21, 2019
    Assignee: KOPIN CORPORATION
    Inventors: Dashen Fan, Joseph Yong Kwon
  • Publication number: 20190131961
    Abstract: An apparatus to time delay a digital, signal output from an oversampled sensor includes a first time delay element and a second time delay element. The first time delay element has a first input and a first output. The first time delay element is configured to output a time delayed signal that is time delayed by an integer number of sampling clock cycles. An output of the oversampled sensor is connected to the first input of the first time delay element. The second time delay element has a second input and a second output and is configured to output a time delayed signal that is time delayed by an integer number of sampling clock cycles. The first output of the first time delay element is connected to the second input of the second time delay element. A multiplexer has a control input and a multiplexer output. The first output of the first time delay element is connected to a first multiplexer input. The second output of the second time delay element is connected to a second multiplexer input.
    Type: Application
    Filed: October 25, 2018
    Publication date: May 2, 2019
    Applicant: KOPIN CORPORATION
    Inventors: DASHEN FAN, JOSEPH YONG KWON
  • Publication number: 20190132682
    Abstract: Programming time delay data in an oversampled sensor includes determining whether to enter Programming Mode based on a value of a system parameter received by the oversampled sensor. Programming Mode is entered when the value of the system parameter corresponds to Programming Mode. The time delay data is programmed in the oversampled sensor during Programming Mode. The oversampled sensor uses the time delay data to time delay its output in an oversampled domain. Programming Mode is exited after a predetermined time has expired relative to when Programming Mode was entered. The system parameter can be a frequency of a sampling clock signal.
    Type: Application
    Filed: October 25, 2018
    Publication date: May 2, 2019
    Applicant: Kopin Corporation
    Inventors: Dashen Fan, Joseph Yong Kwon
  • Patent number: 10209955
    Abstract: Feedback mechanisms to the user of a Head Mounted Display (HMD) are provided. It is important to provide feedback to the user when speech is recognized as soon as possible after the user utters a voice command. The HMD displays and/or audibly renders an ASR acknowledgment in a manner that ensures the user that the HMD has received/understood his voiced command.
    Type: Grant
    Filed: November 13, 2014
    Date of Patent: February 19, 2019
    Assignee: Kopin Corporation
    Inventors: Christopher Parkinson, James Woodall
  • Publication number: 20180307036
    Abstract: A video display device includes an eyepiece; and a display panel that includes a display plane that has a diagonal length that is not greater than 40 mm, wherein the eyepiece includes a first lens group and a second lens group; the first lens group includes a first element that has a first optical surface on the side of the display panel and a second optical surface on the opposite side, wherein the first optical surface has a negative refractive power, and an outer region of the second optical surface has a negative curvature and is convex; the second lens group includes, a second element that has a Fresnel surface facing the side opposite to the display panel and having a positive refractive power, and a third element that has a Fresnel surface facing the side of the display panel and having a positive refractive power.
    Type: Application
    Filed: December 20, 2017
    Publication date: October 25, 2018
    Applicant: KOPIN CORPORATION
    Inventor: Yoichi Iba
  • Patent number: 10070211
    Abstract: The invention is a multi-microphone voice processing SoC primarily for head worn applications. It bypasses the use of conventional pre-amp voice CODEC (ADC/DAC) chips all together by replacing their functionality with digital MEMS microphone(s) and digital speaker driver (DSD). Functionality necessary for speech recognition such as noise/echo cancellation, speech compression, speech feature extraction and lossless speech transmission are also integrated into the SoC. One embodiment is a noise cancellation chip for wired, battery powered headsets and earphones, as smart-phone accessory. Another embodiment is as a wireless Bluetooth noise cancellation companion chip. The invention can be used in headwear, eyewear glass, mobile wearable computing, heavy duty military, aviation and industrial headsets and other speech recognition applications in noisy environments.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: September 4, 2018
    Assignee: KOPIN CORPORATION
    Inventors: Dashen Fan, Jang Ho Kim, Yong Seok Seo, John C. C. Fan
  • Patent number: D836629
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: December 25, 2018
    Assignee: Kopin Corporation
    Inventors: William Bernard Maffucci, Minoo Bablani
  • Patent number: D855687
    Type: Grant
    Filed: March 9, 2018
    Date of Patent: August 6, 2019
    Assignee: Kopin Corporation
    Inventor: Ernesto Carlos Martinez Villalpando
  • Patent number: D863299
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: October 15, 2019
    Assignee: Kopin Corporation
    Inventor: Jeffrey J. Jacobsen