Patents Assigned to ForteMedia, Inc.
  • Patent number: 10475434
    Abstract: An electronic device is provided. The electronic device includes a first microphone device, a speaker, a memory circuit, and a processor. The first microphone device is configured to generate first data based on a first sound. The memory circuit at least stores acoustic data. The processor is coupled to the first microphone device and the speaker. The processor generates second data based on the first data and the acoustic data. The speaker generates a second sound based on the second data. The acoustic data includes the frequency-response of human ear and sound-masking data.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: November 12, 2019
    Assignee: FORTEMEDIA, INC.
    Inventor: Tsung-Lung Yang
  • Patent number: 10431199
    Abstract: An electronic device including an earphone device is provided. The earphone device includes a shell, a speaker, a first microphone device, a memory circuit and a controller. The memory circuit stores multiple parameter sets. The first microphone device receives a first sound. The first microphone device generates first data based on the first sound. The controller compares the first data with the parameter sets of the memory circuit and determines which one of the parameter sets corresponds to the first data based on the frequency parameters and the volume parameters. The controller generates second data based on the adjustment parameters of the one of the parameter sets, and the speaker generates a second sound based on the second data. The first sound generates a third sound in the shell, and the phase of the second sound is substantially opposite to the phase of the third sound.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: October 1, 2019
    Assignee: FORTEMEDIA, INC.
    Inventors: Tsung-Lung Yang, Hung-Chih Teng
  • Patent number: 10349161
    Abstract: A circuit for biasing a transducer including a first plate and a second plate includes a front-end buffer and a charge pump. The front-end buffer generates an internal signal at an internal node in response to a voltage signal of the second plate. The transducer receives the incident sound wave at the first plate to generate the voltage signal at the second plate. The charge pump boosts the internal signal into a boost voltage at the first plate according to a first clock signal.
    Type: Grant
    Filed: October 12, 2017
    Date of Patent: July 9, 2019
    Assignee: FORTEMEDIA, INC.
    Inventors: Ion Opris, Abu Hena M Kamal, Ramesh Prakash, Lee Tay Chew
  • Patent number: 10343898
    Abstract: A micro-electro-mechanical system (MEMS) microphone is provided. The MEMS microphone includes a substrate, a backplate, a diaphragm, a first insulating protrusion and a plurality of second insulating protrusions. The backplate is disposed on a side of the substrate. The diaphragm is disposed between the substrate and the backplate and is movable relative to the backplate. The first insulating protrusion and the second insulating protrusions are formed on the side of the backplate facing the diaphragm. The first insulating protrusion is connected to and affixed to the diaphragm permanently, and an air gap is formed between the diaphragm and each of the second insulating protrusions.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: July 9, 2019
    Assignee: FORTEMEDIA, INC.
    Inventors: Jien-Ming Chen, Nai-Hao Kuo, Wen-Shan Lin, Hsin-Li Lee
  • Patent number: 10349172
    Abstract: A microphone apparatus is provided. The microphone apparatus includes a microphone cover; a circuit board, an integrated circuit, a first microphone, and a second microphone. The integrated circuit is coupled to the microphone cover and the circuit board to form a first chamber and a second chamber. The first microphone is placed inside the first chamber and configured to capture a first acoustic signal from a sound source. The second microphone is placed inside the second chamber and configured to capture a second acoustic signal from the sound source. The first microphone and the second microphone have the same sensitivity, phase, and omni-directivity. The integrated circuit performs a time-delay process on the second acoustic signal and subtracts the time-delayed second acoustic signal from the first acoustic signal to generate a differential signal. The integrated circuit forms a polar pattern of the microphone apparatus according to the differential signal.
    Type: Grant
    Filed: August 8, 2018
    Date of Patent: July 9, 2019
    Assignee: FORTEMEDIA, INC.
    Inventors: Yen-Son Paul Huang, Tsung-Lung Yang
  • Patent number: 10277969
    Abstract: A microphone device is provided. The microphone device includes a microphone cover, a circuit board, an integrated circuit, a first acoustic sensor, and a second acoustic sensor. The circuit board is coupled to the microphone cover. The circuit board includes a first acoustic port and a second acoustic port. The integrated circuit is coupled to the microphone cover and the circuit board to form a first chamber and a second chamber. The first acoustic sensor is arranged in the first chamber. The second acoustic sensor is arranged in the second chamber. The integrated circuit is coupled to the first acoustic sensor and the second acoustic sensor.
    Type: Grant
    Filed: August 3, 2017
    Date of Patent: April 30, 2019
    Assignee: FORTEMEDIA, INC.
    Inventors: Tsung-Lung Yang, Hsin-Li Lee, Neng-Bin Wan
  • Patent number: 10250980
    Abstract: A digital microphone is provided. The digital microphone includes an acoustic sensor, a bias generator, first and second attenuators, a buffer, an amplifier, an ADC, and a controller. The acoustic sensor transfers an acoustic signal to a voltage signal. The bias generator provides a bias voltage to the acoustic sensor. The first attenuator attenuates the voltage signal by a first attenuation value. The buffer buffers the voltage signal to generate a buffered voltage signal. The amplifier amplifies the buffered voltage signal to generate an amplified signal. The ADC converts the amplified signal to a data signal with a digital format. The second attenuator attenuates the data signal by a second attenuation value. The controller determines whether the amplified signal is larger than a reference value and adjusts the bias voltage and the first and second attenuation values of the first and second attenuators according to the result determined by the controller.
    Type: Grant
    Filed: October 11, 2017
    Date of Patent: April 2, 2019
    Assignee: FORTEMEDIA, INC.
    Inventors: Ion Opris, Abu Hena M Kamal, Lee Tay Chew, Ramesh Prakash, Shomo Chen, Qiang Wei, Lung-Chu Joseph Chen
  • Patent number: 10157628
    Abstract: A sound identification device is provided. The sound identification device includes a microphone array and a processing unit. The microphone array includes a plurality of microphones disposed within a microphone module mounted on a housing of the sound identification device. Each microphone receives an acoustic signal caused by a gesture performed on a surface of the microphone module and converts the received acoustic signal to a digital acoustic signal. The processing unit is configured to receive the digital acoustic signal from each microphone, and perform a sound identification process on the digital acoustic signal from each microphone to generate a sound identification result conveying information of the gesture. The processing unit controls at least one application program executed by the processing unit according to the sound identification result.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: December 18, 2018
    Assignee: FORTEMEDIA, INC.
    Inventors: Qing-Guang Liu, Xiaoyan Lu, Weiping Zhang
  • Patent number: 10110121
    Abstract: A charge pump includes a first unidirectional conducting device, a flying capacitor, a second unidirectional conducting device, an output capacitor, a first switch, and a second switch. The first unidirectional conducting device unidirectionally couples a supply voltage to an internal node. The flying capacitor is coupled between the internal node and a clock signal. The second unidirectional conducting device unidirectionally couples the internal node to an output node. The output capacitor is coupled between the output node and a ground. The first switch couples a discharge node to the ground according to a discharge signal. The second switch couples the output node to the discharge node according to the voltage of the internal node.
    Type: Grant
    Filed: October 5, 2017
    Date of Patent: October 23, 2018
    Assignee: FORTEMEDIA, INC.
    Inventors: Ion Opris, Abu Hena M Kamal, Lee Tay Chew, Shomo Chen
  • Patent number: 10104472
    Abstract: An acoustic capture device includes an acoustic transducer, an acoustic detector, an analog-to-digital converter, and a processing element. The acoustic transducer captures an acoustic wave to generate an analog signal. The acoustic detector detects, according to the analog signal, a specific event to generate a trigger signal. The analog-to-digital converter converts the analog signal to generate a digital signal. The processing element receives the trigger signal to execute a control process. The control process includes: analyzing the digital signal to determine ambient information; determining a first set of parameters of the acoustic detector according to the ambient information; performing a control information protocol to adjust the acoustic detector according to the first set of parameters; and performing, according to the ambient information, an enhancement processing on the digital signal to generate an enhanced digital signal.
    Type: Grant
    Filed: January 30, 2017
    Date of Patent: October 16, 2018
    Assignee: FORTEMEDIA, INC.
    Inventors: Qiang Wei, Lung-Chu Joseph Chen, Powen Ru, Qing-Guang Liu, Yen-Son Paul Huang
  • Patent number: 9967662
    Abstract: A microphone device is provided, including first and second chambers, first and second acoustic sensors, and a sound transmission device. The first and second chambers include the first and second acoustic ports, respectively. The first and second acoustic sensors are arranged in the first chamber and the second chamber, respectively. The sound transmission device coupled to the first and second chambers includes third and fourth acoustic ports, a first acoustic tube, and a second acoustic tube. The first acoustic tube communicates with the first acoustic port and the third acoustic port. The second acoustic tube communicates with the second acoustic port and the fourth acoustic port. The sensitivity difference between the first acoustic sensor and the second acoustic sensor is determined based on the length difference or the cross-sectional area difference between the first acoustic tube and the second acoustic tube.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: May 8, 2018
    Assignee: FORTEMEDIA, INC.
    Inventor: Tsung Lung Yang
  • Patent number: 9749746
    Abstract: A noise-suppression device includes an input buffer, a spatial filter, a delay buffer, and a controller. The input buffer stores sound data. The spatial filter generates processed data by using an internal adaptive control according to a control signal. The delay buffer stores the processed data. The controller operates in either one of a training stage, a flushing stage, or a normal stage and generates the control signal. When the controller operates in the training stage, the spatial filter receives the sound data from the input buffer to generate the processed data which is continuously processed by the spatial filter and then stored in the delay buffer over and over again until the internal adaptive control is converged.
    Type: Grant
    Filed: April 18, 2016
    Date of Patent: August 29, 2017
    Assignee: FORTEMEDIA, INC.
    Inventor: Yan-Chen Lu
  • Patent number: 9613626
    Abstract: An audio device and a method thereof are provided. The method is adopted by an audio device to detect a voice, wherein the audio device is coupled to a host device. The method includes an acoustic conversion circuit converting an acoustic wave into an analog audio signal; an analog-to-digital converter (ADC) converting the analog audio signal into digital audio data; a first-level voice detection circuit detecting voice activity in the analog audio signal; a second-level voice detection circuit detecting a beginning syllable of a key phrase in the digital audio data when the voice activity is detected in the digital audio data; and a third-level voice detection circuit detecting the key phrase from the digital audio data only when the beginning syllable of the key phrase is detected in the digital audio data.
    Type: Grant
    Filed: November 30, 2015
    Date of Patent: April 4, 2017
    Assignee: FORTEMEDIA, INC.
    Inventors: Lung-Chu Joseph Chen, Qing Guang Liu, Wilson Or, Yen-Son Paul Huang, Xiao Lin
  • Patent number: 9357292
    Abstract: An electronic device is provided. The electronic device includes a case, an acoustic boot, a first microphone and a second microphone. The case includes a first acoustic opening, a second acoustic opening. The acoustic boot comprises a first duct and a second duct, the first duct is connected to the first acoustic opening, and the second duct is connected to the second acoustic opening. The first microphone is connected to the first duct. The second microphone is connected to the second duct.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 31, 2016
    Assignee: FORTEMEDIA, INC.
    Inventors: Yen-Son Paul Huang, Iou-Din Jean Chen, James Juei Son Lin
  • Patent number: 9191736
    Abstract: A microphone array disposed on a two-piece computer is provided. The two-piece computer has a first piece with a keyboard disposed thereon and a second piece with a display screen disposed thereon. The microphone array has two microphones, which are both disposed on the first piece, wherein a connecting line of the two microphones is not vertical to a normal line of the display screen of the second piece.
    Type: Grant
    Filed: March 11, 2013
    Date of Patent: November 17, 2015
    Assignee: FORTEMEDIA, INC.
    Inventors: Yan-Chen Lu, Shien-Neng Lai, Tsan Hung Tsai, Chun-Ming Hsu
  • Patent number: 8958592
    Abstract: An electronic device is provided. The electronic device includes a case, a microphone array housing consists of a first acoustic extending structure, a second acoustic extending structure, an interface IC, a first membrane and a second membrane. The case includes a first acoustic opening and a second acoustic opening. The first acoustic extending structure is connected to the first acoustic opening. The second acoustic extending structure is connected to the second acoustic opening. The first membrane receives a first acoustic signal via the first acoustic opening and the first acoustic extending structure. The second membrane receives a second acoustic signal via the second acoustic opening and the second acoustic extending structure.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: February 17, 2015
    Assignee: Fortemedia, Inc.
    Inventors: Yen-Son Paul Huang, Iou-Din Jean Chen, James Juei Son Lin
  • Publication number: 20140348370
    Abstract: An electronic device is provided. The electronic device includes a case, a microphone array housing consists of a first acoustic extending structure, a second acoustic extending structure, an interface IC, a first membrane and a second membrane. The case includes a first acoustic opening and a second acoustic opening. The first acoustic extending structure is connected to the first acoustic opening. The second acoustic extending structure is connected to the second acoustic opening. The first membrane receives a first acoustic signal via the first acoustic opening and the first acoustic extending structure. The second membrane receives a second acoustic signal via the second acoustic opening and the second acoustic extending structure.
    Type: Application
    Filed: May 23, 2013
    Publication date: November 27, 2014
    Applicant: Fortemedia, Inc.
    Inventors: Yen-Son Paul HUANG, Iou-Din Jean CHEN, James Juei Son LIN
  • Publication number: 20140343949
    Abstract: A smart microphone device is provided. The smart microphone device is coupled to a host, and includes: an analog microphone unit, receiving sounds; a voice detection unit, coupled to the analog microphone unit, detecting voices from the sounds; a speech detection unit, coupled to the voice detection unit, detecting a speech from the voices; and a channel select pin, coupled between the smart microphone device and the host, wherein an interrupt signal is sent from the smart microphone device to the host via the channel select pin to enable the host to operate in the normal mode when the speech detection unit detects the speech.
    Type: Application
    Filed: July 23, 2013
    Publication date: November 20, 2014
    Applicant: Fortemedia, Inc.
    Inventors: Yen-Son Paul HUANG, Iou-Din Jean CHEN, Edward DENG, Lung-Chu Joseph CHEN
  • Publication number: 20140321664
    Abstract: Methods for dynamically programming a microphone are provided. The method, adopted by a microphone system including a first microphone device and a host device connected thereto, includes: transmitting, by the host device, a command message to the first microphone device; receiving, by the first microphone device, a command message from the host device; decoding, by the first microphone device, the command message; dynamically performing, by the first microphone device, an operation based on the decoded command message to generate first data; and receiving, by the host device, first data from the first microphone device.
    Type: Application
    Filed: April 25, 2013
    Publication date: October 30, 2014
    Applicant: Fortemedia, Inc.
    Inventors: Yen-Son Paul HUANG, Sho-Mo CHEN, Iou-Din Jean CHEN
  • Publication number: 20140254824
    Abstract: A microphone array disposed on a two-piece computer is provided. The two-piece computer has a first piece with a keyboard disposed thereon and a second piece with a display screen disposed thereon. The microphone array has two microphones, which are both disposed on the first piece, wherein a connecting line of the two microphones is not vertical to a normal line of the display screen of the second piece.
    Type: Application
    Filed: March 11, 2013
    Publication date: September 11, 2014
    Applicant: FORTEMEDIA, INC.
    Inventors: Yan-Chen LU, Shien-Neng LAI, Tsan Hung TSAI, Chun-Ming HSU