Patents by Inventor Bizhan Karimi-Cherkandi

Bizhan Karimi-Cherkandi 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).

  • Publication number: 20200411025
    Abstract: A method and apparatus that filters audio data received from a speaking person that includes a specific filter for that speaker. The audio characteristics of the speaker's voice may be collected and the specific filter may be formed to reduce noise while also enhancing voice quality. For instance, if a speaker's voice does not contain specific frequencies, then a filter may cancel the noise at such frequencies to ease noise cancellation and reduce processing sound spectrum for cleaning that is not needed. Additionally, the strength frequencies of a speaker's voice may be identified from the collected audio characteristics and those spectrums can be filtered with finer granularity to provide a speaker specific filter that enhances the voice quality of the speaker's voice data that is transmitted or output by a communication device. The audio data may also be output based upon a user's predefined hearing spectrum.
    Type: Application
    Filed: September 11, 2020
    Publication date: December 31, 2020
    Applicant: RINGCENTRAL, INC.
    Inventors: Bizhan KARIMI-CHERKANDI, Farrokh Mohammadzadeh KOUCHRI, Schah Walli ALI
  • Patent number: 10803880
    Abstract: A method and apparatus that filters audio data received from a speaking person that includes a specific filter for that speaker. The audio characteristics of the speaker's voice may be collected and the specific filter may be formed to reduce noise while also enhancing voice quality. For instance, if a speaker's voice does not contain specific frequencies, then a filter may cancel the noise at such frequencies to ease noise cancellation and reduce processing sound spectrum for cleaning that is not needed. Additionally, the strength frequencies of a speaker's voice may be identified from the collected audio characteristics and those spectrums can be filtered with finer granularity to provide a speaker specific filter that enhances the voice quality of the speaker's voice data that is transmitted or output by a communication device. The audio data may also be output based upon a user's predefined hearing spectrum.
    Type: Grant
    Filed: May 1, 2019
    Date of Patent: October 13, 2020
    Assignee: RINGCENTRAL, INC.
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali
  • Patent number: 10516881
    Abstract: A method and apparatus that tests video quality includes a superimposing of at least one code to a video that is to be transmitted by a communication device to another communication device. The at least one code is transmitted such that the superimposed at least one code is extractable and readable from the decoded video by the device that receives the transmitted video. The extracted at least one code may then be read to determine the quality level of the transmitted video. The determination of quality for the received video may be based upon one or more tests performed using at least one code extracted from the received video.
    Type: Grant
    Filed: February 12, 2019
    Date of Patent: December 24, 2019
    Assignee: Unify GmbH & Co. KG
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali, Thomas Nagel
  • Publication number: 20190259406
    Abstract: A method and apparatus that filters audio data received from a speaking person that includes a specific filter for that speaker. The audio characteristics of the speaker's voice may be collected and the specific filter may be formed to reduce noise while also enhancing voice quality. For instance, if a speaker's voice does not contain specific frequencies, then a filter may cancel the noise at such frequencies to ease noise cancellation and reduce processing sound spectrum for cleaning that is not needed. Additionally, the strength frequencies of a speaker's voice may be identified from the collected audio characteristics and those spectrums can be filtered with finer granularity to provide a speaker specific filter that enhances the voice quality of the speaker's voice data that is transmitted or output by a communication device. The audio data may also be output based upon a user's predefined hearing spectrum.
    Type: Application
    Filed: May 1, 2019
    Publication date: August 22, 2019
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali
  • Patent number: 10356684
    Abstract: A method, system and apparatus for selecting an access point includes detecting a location and direction of motion of a mobile device, detecting a strength of signal from candidate access points and determining a location of such access points based upon at least one of the (i) location and direction of motion of the mobile device, (ii) access point location information known to the mobile device, and (iii) monitoring of the change in detected signal strength from candidate access points that occurs upon the movement of the mobile device. Embodiments of the system and apparatus way include a mobile terminal device or may include such a device and a plurality of access points that provide access to a network, such as a base station or a router that provide access to an enterprise network or a local area network that is connected to the internet.
    Type: Grant
    Filed: June 19, 2018
    Date of Patent: July 16, 2019
    Assignee: Unify GmbH & Co. KG
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali
  • Patent number: 10325612
    Abstract: A method and apparatus that filters audio data received from a speaking person that includes a specific filter for that speaker. The audio characteristics of the speaker's voice may be collected and the specific filter may be formed to reduce noise while also enhancing voice quality. For instance, if a speaker's voice does not contain specific frequencies, then a filter may cancel the noise at such frequencies to ease noise cancellation and reduce processing sound spectrum for cleaning that is not needed. Additionally, the strength frequencies of a speaker's voice may be identified from the collected audio characteristics and those spectrums can be filtered with finer granularity to provide a speaker specific filter that enhances the voice quality of the speaker's voice data that is transmitted or output by a communication device. The audio data may also be output based upon a user's predefined hearing spectrum.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: June 18, 2019
    Assignee: Unify GmbH & Co. KG
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali
  • Publication number: 20190174127
    Abstract: A method and apparatus that tests video quality includes a superimposing of at least one code to a video that is to be transmitted by a communication device to another communication device. The at least one code is transmitted such that the superimposed at least one code is extractable and readable from the decoded video by the device that receives the transmitted video. The extracted at least one code may then be read to determine the quality level of the transmitted video. The determination of quality for the received video may be based upon one or more tests performed using at least one code extracted from the received video.
    Type: Application
    Filed: February 12, 2019
    Publication date: June 6, 2019
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali, Thomas Nagel
  • Patent number: 10250872
    Abstract: A method and apparatus that tests video quality includes a superimposing of at least one code to a video that is to be transmitted by a communication device to another communication device. The at least one code is transmitted such that the superimposed at least one code is extractable and readable from the decoded video by the device that receives the transmitted video. The extracted at least one code may then be read to determine the quality level of the transmitted video. The determination of quality for the received video may be based upon one or more tests performed using at least one code extracted from the received video.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: April 2, 2019
    Assignee: Unify GmbH & Co. KG
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali, Thomas Nagel
  • Publication number: 20180310219
    Abstract: A method, system and apparatus for selecting an access point includes detecting a location and direction of motion of a mobile device, detecting a strength of signal from candidate access points and determining a location of such access points based upon at least one of the (i) location and direction of motion of the mobile device, (ii) access point location information known to the mobile device, and (iii) monitoring of the change in detected signal strength from candidate access points that occurs upon the movement of the mobile device. Embodiments of the system and apparatus way include a mobile terminal device or may include such a device and a plurality of access points that provide access to a network, such as a base station or a router that provide access to an enterprise network or a local area network that is connected to the internet.
    Type: Application
    Filed: June 19, 2018
    Publication date: October 25, 2018
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali
  • Patent number: 10069965
    Abstract: The invention relates to a communication system and a method of maintaining audio communication in a congested communication channel currently bearing the transmission of speech in audio communication between a sender side and a receiver side, the communication channel having at least one signaling channel and at least one payload channel having a quality of service. During the audio communication the quality of service of the payload channel is monitored. If the quality of service of the payload channel is below a threshold the speech at the respective sender side is converted to text; and transmitted over the retained communication channel to the respective receiver side. The text may be converted back to speech at the receiver side.
    Type: Grant
    Filed: June 14, 2017
    Date of Patent: September 4, 2018
    Assignee: Unify GmbH & Co. KG
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali
  • Patent number: 10028196
    Abstract: A method, system and apparatus for selecting an access point includes detecting a location and direction of motion of a mobile device, detecting a strength of signal from candidate access points and determining a location of such access points based upon at least one of the (i) location and direction of motion of the mobile device, (ii) access point location information known to the mobile device, and (iii) monitoring of the change in detected signal strength from candidate access points that occurs upon the movement of the mobile device. Embodiments of the system and apparatus may include a mobile terminal device or may include such a device and a plurality of access points that provide access to a network, such as a base station or a router that provide access to an enterprise network or a local area network that is connected to the internet.
    Type: Grant
    Filed: September 14, 2016
    Date of Patent: July 17, 2018
    Assignee: Unify GmbH & Co. KG
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali
  • Publication number: 20180091807
    Abstract: A method and apparatus that tests video quality includes a superimposing of at least one code to a video that is to be transmitted by a communication device to another communication device. The at least one code is transmitted such that the superimposed at least one code is extractable and readable from the decoded video by the device that receives the transmitted video. The extracted at least one code may then be read to determine the quality level of the transmitted video. The determination of quality for the received video may be based upon one or more tests performed using at least one code extracted from the received video.
    Type: Application
    Filed: November 29, 2017
    Publication date: March 29, 2018
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali, Thomas Nagel
  • Patent number: 9860525
    Abstract: A method and apparatus that tests video quality includes a superimposing of at least one code to a video that is to be transmitted by a communication device to another communication device. The at least one code is transmitted such that the superimposed at least one code is extractable and readable from the decoded video by the device that receives the transmitted video. The extracted at least one code may then be read to determine the quality level of the transmitted video. The determination of quality for the received video may be based upon one or more tests performed using at least one code extracted from the received video.
    Type: Grant
    Filed: September 13, 2016
    Date of Patent: January 2, 2018
    Assignee: Unify GmbH & Co. KG
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali, Thomas Nagel
  • Publication number: 20170330578
    Abstract: A method and apparatus that filters audio data received from a speaking person that includes a specific filter for that speaker. The audio characteristics of the speaker's voice may be collected and the specific filter may be formed to reduce noise while also enhancing voice quality. For instance, if a speaker's voice does not contain specific frequencies, then a filter may cancel the noise at such frequencies to ease noise cancellation and reduce processing sound spectrum for cleaning that is not needed. Additionally, the strength frequencies of a speaker's voice may be identified from the collected audio characteristics and those spectrums can be filtered with finer granularity to provide a speaker specific filter that enhances the voice quality of the speaker's voice data that is transmitted or output by a communication device. The audio data may also be output based upon a user's predefined hearing spectrum.
    Type: Application
    Filed: August 1, 2017
    Publication date: November 16, 2017
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali
  • Publication number: 20170279959
    Abstract: The invention relates to a communication system and a method of maintaining audio communication in a congested communication channel currently bearing the transmission of speech in audio communication between a sender side and a receiver side, the communication channel having at least one signaling channel and at least one payload channel having a quality of service. During the audio communication the quality of service of the payload channel is monitored. If the quality of service of the payload channel is below a threshold the speech at the respective sender side is converted to text; and transmitted over the retained communication channel to the respective receiver side. The text may be converted back to speech at the receiver side.
    Type: Application
    Filed: June 14, 2017
    Publication date: September 28, 2017
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali
  • Patent number: 9712666
    Abstract: The invention relates to a communication system and a method of maintaining audio communication in a congested communication channel currently bearing the transmission of speech in audio communication between a sender side and a receiver side, the communication channel having at least one signaling channel and at least one payload channel having a quality of service. During the audio communication the quality of service of the payload channel is monitored. If the quality of service of the payload channel is below a threshold the speech at the respective sender side is converted to text; and transmitted over the retained communication channel to the respective receiver side. The text may be converted back to speech at the receiver side.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: July 18, 2017
    Assignee: Unify GmbH & Co. KG
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali
  • Patent number: 9712782
    Abstract: A communication system, method and communication terminal are configured to permit bandwidth reduction when communication partners are engaged in a communication session. In one embodiment, a communication terminal such as a cellular phone or tablet may turn off at least one of its display and camera sensor within a predetermined amount of time when the terminal is detected as being positioned near a user's ear via at least one sensor of the terminal. In some embodiments, the communication terminal may also transmit one or more messages to communication devices of communication partners engaged in the communication session to inform those devices that video transmissions should no longer be sent to the communication terminal. The communication terminal and other communication devices involved in the communication session may also stop transmitting video as a result of the detection of the communication terminal being positioned near a user's ear.
    Type: Grant
    Filed: February 10, 2016
    Date of Patent: July 18, 2017
    Assignee: Unify GmbH & Co. KG
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali
  • Patent number: 9699407
    Abstract: A method for outputting sensitive data to a user includes a communication terminal checking to determine whether at least a portion of the sensitive data is to be outputted by determining whether the communication terminal is in one of a plurality of predefined communication configurations for outputting the sensitive data. If the communication terminal is found to be a first configuration, the communication terminal transmits the sensitive data so that at least one of the video data and the audio data is output to the user via at least one peripheral device connected to the communication terminal. If the communication terminal is in a second configuration, the communication terminal performs at least one security action to help further protect the sensitive data.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: July 4, 2017
    Assignee: Unify GmbH & Co. KG
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali
  • Publication number: 20170006517
    Abstract: A method, system and apparatus for selecting an access point includes detecting a location and direction of motion of a mobile device, detecting a strength of signal from candidate access points and determining a location of such access points based upon at least one of the (i) location and direction of motion of the mobile device, (ii) access point location information known to the mobile device, and (iii) monitoring of the change in detected signal strength from candidate access points that occurs upon the movement of the mobile device. Embodiments of the system and apparatus may include a mobile terminal device or may include such a device and a plurality of access points that provide access to a network, such as a base station or a router that provide access to an enterprise network or a local area network that is connected to the internet.
    Type: Application
    Filed: September 14, 2016
    Publication date: January 5, 2017
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali
  • Publication number: 20160381356
    Abstract: A method and apparatus that tests video quality includes a superimposing of at least one code to a video that is to be transmitted by a communication device to another communication device. The at least one code is transmitted such that the superimposed at least one code is extractable and readable from the decoded video by the device that receives the transmitted video. The extracted at least one code may then be read to determine the quality level of the transmitted video. The determination of quality for the received video may be based upon one or more tests performed using at least one code extracted from the received video.
    Type: Application
    Filed: September 13, 2016
    Publication date: December 29, 2016
    Inventors: Bizhan Karimi-Cherkandi, Farrokh Mohammadzadeh Kouchri, Schah Walli Ali, Thomas Nagel