Patents Assigned to Dyna Image Corporation
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Patent number: 11467268Abstract: Disclosures of the present invention describe an optical proximity sensor, which is particularly designed to have functionality of canceling an ambient light noise and/or an optical crosstalk noise by using light-to-frequency conversion technique, and comprises: a controlling and processing circuit, a lighting unit, a light receiving unit, an analog adder, a first DAC unit, a second DAC unit, and a light-to-digital conversion (LDC) unit. In the controlling of the controlling and processing circuit, the first DAC unit and the second DAC unit would respectively generate a first compensation current signal and a second compensation current signal to the analog adder, such that a noise signal of ambient light and a noise signal of optical crosstalk existing in an optical current signal of object reflection light would be canceled by the two compensation current signals in the analog adder.Type: GrantFiled: June 23, 2019Date of Patent: October 11, 2022Assignees: Dyna Image Corporation, Lite-On Semiconductor CorporationInventors: Wen-Sheng Lin, Sheng-Cheng Lee, Yu-Cheng Su, Peng-Han Chan, Chun-Hsien Lin
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Publication number: 20220121265Abstract: A low power operation method provides an apparatus with a data transmission rate. A power management unit (PMU), which is not influenced by voltage, process, and temperature, biases a high frequency oscillator (HOSC) and makes the HOSC generate a steady and high precision clock. The clock of the HOSC is used to modify a timing length of a timer which is referenced by a low frequency oscillator (LOSC) without PMU. At last, through the modified timing length, the apparatus achieves high precision periods and data transmissions with compensation for voltage, process, and temperature. Thus, the data transmission cycles of the apparatus maintain stable and robust even if the apparatus applies duty cycle usage of the HOSC and the PMU for reducing power consumption with actions of turning on and turning off. Consequently, the periodic apparatus maintains data transmission rate with the low power consumption advantage of non-periodic apparatus.Type: ApplicationFiled: October 19, 2020Publication date: April 21, 2022Applicants: Dyna Image Corporation, Lite-On Semiconductor Corp.Inventors: Peng-Han Chan, Chun-Hsien Lin, Sheng-Cheng Lee, Wen-Sheng Lin, Yu-Cheng Su
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Patent number: 11307641Abstract: A low power operation method provides an apparatus with a data transmission rate. A power management unit (PMU), which is not influenced by voltage, process, and temperature, biases a high frequency oscillator (HOSC) and makes the HOSC generate a steady and high precision clock. The clock of the HOSC is used to modify a timing length of a timer which is referenced by a low frequency oscillator (LOSC) without PMU. At last, through the modified timing length, the apparatus achieves high precision periods and data transmissions with compensation for voltage, process, and temperature. Thus, the data transmission cycles of the apparatus maintain stable and robust even if the apparatus applies duty cycle usage of the HOSC and the PMU for reducing power consumption with actions of turning on and turning off. Consequently, the periodic apparatus maintains data transmission rate with the low power consumption advantage of non-periodic apparatus.Type: GrantFiled: October 19, 2020Date of Patent: April 19, 2022Assignees: Dyna Image Corporation, Lite-On Semiconductor CorporationInventors: Peng-Han Chan, Chun-Hsien Lin, Sheng-Cheng Lee, Wen-Sheng Lin, Yu-Cheng Su
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Patent number: 11196247Abstract: A digital device is provided. The digital device uses three states, including a ground (GND) state, a voltage (VDD) state, and a FLOAT state. On designing a chip, two storage units and a pad circuit are set inside; the pad circuit comprises a current limiter and two switches; and less ports contained are required than the conventional. That is, one port obtains three states. As comparing to the conventional having only two states, the present invention uses the port connected with two storage units in the pad circuit for obtaining the three states; a circuit featuring “pull up” and “pull down” is used to identify the state of connection of the port; and the port determines a plurality of definitions through the three states of GND, VDD and FLOAT. Thus, a pad is saved for reducing the space and cost of the chip.Type: GrantFiled: October 19, 2020Date of Patent: December 7, 2021Assignees: Dyna Image Corporation, Lite-On Semiconductor CorporationInventors: Peng-Han Chan, Chun-Hsien Lin, Sheng-Cheng Lee, Wen-Sheng Lin, Yu-Cheng Su
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Patent number: 10951163Abstract: A smart method is provided for a low-current oscillatory circuitry. The circuitry comprises an oscillator and a microcontroller unit (MCU). The oscillator comprises a proportional-to-absolute-temperature circuit connecting to a low-voltage regulator. The low-voltage regulator connects to a PMOS diode array and a delay unit circuit. The PMOS diode array connects to the MCU. The delay unit circuit connects to the MCU and a voltage converter. The method includes a normal temperature compensation algorithm; a smart learning algorithm of extra-high temperature compensation; and an ultra-high temperature compensation algorithm. Thus, clock variations are compensated; output frequency is stable and not affected by voltage or temperature variations; and process variations are suppressed. When process variations appear, there are not be too many errors generated.Type: GrantFiled: March 24, 2020Date of Patent: March 16, 2021Assignees: Dyna Image Corporation, Lite-On Semiconductor Corp.Inventors: Sheng-Cheng Lee, Wen-Sheng Lin, Yu-Cheng Su, Chun-Hsien Lin, Peng-Han Chan
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Patent number: 10915079Abstract: A light sensor device is provided. It is controlled with a dual-mode master-and-slave microcontroller unit (MCU) application. An MCU is embedded into a light sensor chip. The original dual-mode master-and-slave dual-CPU architectures are combined to be operated as a single-CPU architecture. Since the original circuit pin design is followed, it is possible to be compatible with the old circuit design. The present invention uses a single-CPU architecture to directly control light sensors. Through the configuration of RAM, an inter-integrated circuit bus (I2C I/F) can be redirected to an internal non-volatile memory to switch the operational mode of the light sensor chip from a slave machine to a host machine which switches off the interrupt pin and, then, turns to a GPIO pin. Thus, the present invention provides a simple single-CPU architecture with easy use and effectively-lowered cost.Type: GrantFiled: April 17, 2019Date of Patent: February 9, 2021Assignees: Dyna Image Corporation, Lite-On Semiconductor CorporationInventors: Chun-Hsien Lin, Peng-Han Chan, Wen-Sheng Lin, Yu-Cheng Su, Sheng-Cheng Lee
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Patent number: 9677930Abstract: A method of interrupt control for a control unit of an electronic system includes receiving digital data; determining a value of the digital data; and sending interrupt signals to a host by the following methods according to the value: when the control unit is in a second signal sending status and after the value of the digital data increases to be greater than a first threshold and remains greater than the first threshold for a first period of time, switching the control unit to a first signal sending status; and when the control unit is in the first signal sending status and after the value of the digital data decreases to be smaller than a second threshold and remains smaller than the second threshold for a second period of time, switching the control unit to the second signal sending status. The second threshold is smaller than the first threshold.Type: GrantFiled: January 16, 2014Date of Patent: June 13, 2017Assignee: Dyna Image CorporationInventor: Peng-Han Zhan
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Patent number: 9377354Abstract: A motion sensor includes: a substrate, which includes a plurality of lead frame layers and a plurality of ceramic layers; a light source, disposed on the substrate, for emitting light; a sensing device, disposed on the substrate, for receiving the light to perform motion sensing; a cover, for fixing and protecting the light source and the sensing device; and an adhesive, for gluing the cover to the substrate, the adhesive including a component capable of blocking the light; wherein the light is infrared light, visible light or ultraviolet light.Type: GrantFiled: April 28, 2014Date of Patent: June 28, 2016Assignee: Dyna Image CorporationInventor: Ming-Hsun Hsieh
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Patent number: 9297695Abstract: A motion sensing device for sensing infrared rays, the motion sensing device includes a substrate; a sensing unit, configured on the substrate for sensing the infrared rays; a stabilizing layer, covering on the sensing unit for fixing and protecting the sensing unit, wherein the stabilizing layer has an opening; a protection layer, formed on the opening; and a coating layer, covering the stabilizing layer for absorbing infrared rays, wherein the coating layer does not cover the opening.Type: GrantFiled: April 28, 2014Date of Patent: March 29, 2016Assignee: Dyna Image CorporationInventor: Ming-Hsun Hsieh
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Patent number: 9063011Abstract: A method of signal adjustment in an optical sensing device is provided. The optical sensing device includes a first optical sensor and a first reference optical sensor. The first optical sensor corresponds to a first specified ideal spectral response and generates a first output signal corresponding to light detected thereby. The first reference optical sensor generates a first reference signal corresponding to light detected thereby, and is disposed adjacent to the first optical sensor such that the light detected by the first reference optical sensor is substantially the light detected by the first optical sensor. The method includes the steps of: a) receiving the first output signal and the first reference signal; and b) generating a first adjusted output signal having a spectral response that approximates the first specified ideal spectral response, by adjusting the first output signal according to the first reference signal.Type: GrantFiled: March 29, 2011Date of Patent: June 23, 2015Assignee: Dyna Image CorporationInventors: Meng-Kun Chen, Chun-Hsien Lin, Yi-Tsung Li
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Patent number: 9006850Abstract: A motion sensing device for sensing infrared rays includes a substrate; an optical module, including a first spacer layer, coupled to the substrate; a first glass layer, formed on the first spacer layer; a second spacer layer, formed on the first glass layer; a second glass layer, formed on the second spacer layer; a third spacer layer, formed on the second glass layer; a first lens, bonding on a first side of the second glass layer; and a second layer, bonding on a second side relative to the first side of the second glass layer; and a coating layer, covered on the optical layer for shielding the infrared rays, wherein the coating layer does not cover the first lens.Type: GrantFiled: February 13, 2014Date of Patent: April 14, 2015Assignee: Dyna Image CorporationInventor: Ming-Hsun Hsieh
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Patent number: 6028330Abstract: A sensor device has a field oxide layer deposited over a substrate. The field oxide layer has opposing sharp edges that define a window. A sensor is formed in the window with a distance between the sensor and each sharp edge that defines the window. The distance forms a gap that reduces the effects of the sharp edges on the sensor, thereby reducing the current leakage from the sensor. In addition, a protective layer may be disposed over the distance and the sharp edges of the field oxide layer to further protect the sharp edges from damage that may be caused from further processing.Type: GrantFiled: August 4, 1998Date of Patent: February 22, 2000Assignee: Dyna Image CorporationInventors: Sheng-Ti Lee, Chi-Ting Shen, Chi-Fin Chen, Chien-I Fu, Chao-Jung Chen, Wei-Jung Chen
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Patent number: 6014230Abstract: A contact image sensor for use in a fax machine or scanner, including a driver, at least one sensor chip, an analog switch, a capacitor, an operational amplifier, a uni-power supply, a voltage converter, and a voltage converter. In an alternate form of the present invention, the operational amplifier and the voltage converter are omitted.Type: GrantFiled: June 4, 1996Date of Patent: January 11, 2000Assignee: Dyna Image CorporationInventors: Chiden Cheng, W. S. Chen, Tonny Fu, H. Y. Chen
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Patent number: 5784178Abstract: A contact image sensor is provided with a modified photodevice module and method of operation. The photodevice modules convert the video signals created by the sensed lights from an electrical charge to electrical voltage immediately upon stimulation of the photodevice, and hold the electrical voltage at another element in the photodevice module so that the voltage can be immediately output when the shift register output switch is turned on. A dark current elimination circuit is also provided and includes a light-shielded photodevice which produces a dark current reference signal representative of the expected dark current in the photodevices of the photodevice modules. This dark current reference signal is used to adjust the electrical charge created by the light stimulation of the photodevice.Type: GrantFiled: March 6, 1996Date of Patent: July 21, 1998Assignee: Dyna Image CorporationInventors: Yong-Song Tsai, Sheng-Ti Lee, Chien-Chou Huang, Chien-I Fu
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Patent number: 5491384Abstract: A light source for a contact image sensor, including an electroluminescent screen fastened to the scanning face glass of a contact image sensor at the back either by bonding or printing and having a narrow gap through which reflected light from document passes to the lens of the contact image sensor.Type: GrantFiled: August 30, 1994Date of Patent: February 13, 1996Assignee: Dyna Image CorporationInventors: Cheden Cheng, Shih S. Huang, Tsung M. Ko, Hsin C. Su