Patents by Inventor Anand Krishnamachari
Anand Krishnamachari 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).
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Publication number: 20240107495Abstract: During operation, a computer system may provide instructions to access points in an indoor environment to measure relative distances between the access points. Then, the computer system may receive the measured relative distances. Moreover, the computer system may calculate geographic locations of the access points based at least in part on the measured relative distances. Next, the computer system may select potential anchor access points in the access points, and may provide, to an electronic device, information specifying the potential anchor access points. Furthermore, the computer system may receive, from the electronic device, second information specifying anchor access points in the potential access points and defined locations of the anchor access points. Additionally, the computer system may update the geographic locations based at least in part on the defined of the anchor access points, and may provide, to the access points, the updated geographic locations.Type: ApplicationFiled: September 19, 2023Publication date: March 28, 2024Applicant: ARRIS Enterprises LLCInventors: See Ho Ting, Cheng-Ming Chien, Kuan-Chih Chou, Lin Zeng, Chih-Ming Lam, Wei Xiang Ng, Arsalan Habib, Anand Krishnamachari
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Patent number: 11695200Abstract: Antenna systems for access points and other wireless radio units include an RF ground plane, a radiating element mounted in front of the RF ground plane, and a coaxial feed cable coupled to the radiating element. The cable jacket includes a first opening that exposes a first portion of an outer conductor of the coaxial feed cable so that the cable jacket is on either side of the first opening along a longitudinal direction of the coaxial feed cable. The first portion of the outer conductor is galvanically connected to the RF ground plane via a first direct galvanic connection.Type: GrantFiled: November 3, 2022Date of Patent: July 4, 2023Assignee: ARRIS Enterprises LLCInventors: Anand Krishnamachari, Douglas Blake Kough, Peter H. Liu
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Publication number: 20230057120Abstract: Antenna systems for access points and other wireless radio units include an RF ground plane, a radiating element mounted in front of the RF ground plane, and a coaxial feed cable coupled to the radiating element. The cable jacket includes a first opening that exposes a first portion of an outer conductor of the coaxial feed cable so that the cable jacket is on either side of the first opening along a longitudinal direction of the coaxial feed cable. The first portion of the outer conductor is galvanically connected to the RF ground plane via a first direct galvanic connection.Type: ApplicationFiled: November 3, 2022Publication date: February 23, 2023Inventors: Anand Krishnamachari, Douglas Blake Kough, Peter H. Liu
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Patent number: 11563458Abstract: Systems and methods for RF hazard protection are provided. In one embodiment, a RF protection coupler comprises: a first port to couple to an output of an RF source circuit; a second port to couple to an external RF load; a source side and load side RF switches, wherein the source side RF switch and the load side RF switch are each switch between a first and second states in response to a detected matting. In the first state the source and load side RF switches establish an electrical path between the first and second ports. In the second state: the source side RF switch couples the first port to an impedance load that is impedance matched to the output of the RF source circuit; the load side RF switch couples the second port to an electrical ground; and a gap between the switches electrically isolates the ports.Type: GrantFiled: December 3, 2020Date of Patent: January 24, 2023Assignee: CommScope Technologies LLCInventors: Karl-Heinz Fackler, Rainer Friedrich, Anand Krishnamachari, Edmund W Chen
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Publication number: 20220399909Abstract: An access point includes a WiFi chipset, a first radio that is coupled to the WiFi chipset and that is selectively coupled to a first radiating element through one of a first filter or a second filter, and a second radio that is coupled between the WiFi chipset and a second radiating element.Type: ApplicationFiled: June 9, 2022Publication date: December 15, 2022Inventors: Anand Krishnamachari, Rajesh Koganti, Deepak Tripathi
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Patent number: 11522283Abstract: Antenna systems for access points and other wireless radio units include an RF ground plane, a radiating element mounted in front of the RF ground plane, and a coaxial feed cable coupled to the radiating element. The cable jacket includes a first opening that exposes a first portion of an outer conductor of the coaxial feed cable so that the cable jacket is on either side of the first opening along a longitudinal direction of the coaxial feed cable. The first portion of the outer conductor is galvanically connected to the RF ground plane via a first direct galvanic connection.Type: GrantFiled: January 18, 2021Date of Patent: December 6, 2022Assignee: ARRIS Enterprises LLCInventors: Anand Krishnamachari, Douglas Blake Kough, Peter H. Liu
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Patent number: 11424798Abstract: An access point includes a data encoder, a first transmit/receive chain coupled to the data encoder, the first transmit/receive chain including a first radio and a first antenna that are configured to transmit RF signals in a first frequency band, a second transmit/receive chain coupled to the data encoder, the second transmit/receive chain including a second radio and a second antenna that are configured to transmit RF signals in the first frequency band, and a switchable ground element that comprises a conductive member that is connected to a ground reference via a switch. The first antenna is separated from the second antenna by a distance that is less than one wavelength of a center frequency of the first operational frequency band.Type: GrantFiled: September 30, 2021Date of Patent: August 23, 2022Assignee: ARRIS Enterprises LLCInventors: Anand Krishnamachari, Rajesh Koganti, Douglas Kough, James Jervis
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Publication number: 20220109477Abstract: An access point includes a data encoder, a first transmit/receive chain coupled to the data encoder, the first transmit/receive chain including a first radio and a first antenna that are configured to transmit RF signals in a first frequency band, a second transmit/receive chain coupled to the data encoder, the second transmit/receive chain including a second radio and a second antenna that are configured to transmit RF signals in the first frequency band, and a switchable ground element that comprises a conductive member that is connected to a ground reference via a switch. The first antenna is separated from the second antenna by a distance that is less than one wavelength of a center frequency of the first operational frequency band.Type: ApplicationFiled: September 30, 2021Publication date: April 7, 2022Applicant: ARRIS Enterprises LLCInventors: Anand Krishnamachari, Rajesh Koganti, Douglas Kough, James Jervis
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Publication number: 20210226659Abstract: Systems and methods for RF hazard protection are provided. In one embodiment, a RF protection coupler comprises: a first port to couple to an output of an RF source circuit; a second port to couple to an external RF load; a source side and load side RF switches, wherein the source side RF switch and the load side RF switch are each switch between a first and second states in response to a detected matting. In the first state the source and load side RF switches establish an electrical path between the first and second ports. In the second state: the source side RF switch couples the first port to an impedance load that is impedance matched to the output of the RF source circuit; the load side RF switch couples the second port to an electrical ground; and a gap between the switches electrically isolates the ports.Type: ApplicationFiled: December 3, 2020Publication date: July 22, 2021Applicant: CommScope Technologies LLCInventors: Karl-Heinz Fackler, Rainer Friedrich, Anand Krishnamachari, Edmund W. Chen
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Publication number: 20210226329Abstract: Antenna systems for access points and other wireless radio units include an RF ground plane, a radiating element mounted in front of the RF ground plane, and a coaxial feed cable coupled to the radiating element. The cable jacket includes a first opening that exposes a first portion of an outer conductor of the coaxial feed cable so that the cable jacket is on either side of the first opening along a longitudinal direction of the coaxial feed cable. The first portion of the outer conductor is galvanically connected to the RF ground plane via a first direct galvanic connection.Type: ApplicationFiled: January 18, 2021Publication date: July 22, 2021Inventors: Anand Krishnamachari, Douglas Blake Kough, Peter H. Liu
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Patent number: 10869279Abstract: An electronic device that provides modified electrical signals is described. An interface circuit in the electronic device may provide electrical signals for an antenna module, which may be coupled to the interface circuit by a cable, and the electrical signals may correspond to or may specify an output transmit-power level at the interface circuit. Then, the interface circuit may receive feedback about an input transmit-power level at the antenna module. Based on the feedback, a data rate and/or a modulation and coding scheme, the interface circuit may provide the modified electrical signals for the antenna module, where the modified electrical signals correspond to a modified output transmit-power level at the interface circuit. In some embodiments, the feedback is provided by repurposing, during a different operating mode, signal lines that otherwise specify an antenna pattern.Type: GrantFiled: August 21, 2019Date of Patent: December 15, 2020Assignee: ARRIS Enterprises LLCInventors: Anand Krishnamachari, William Buel, Craig Owens, Eran Dor
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Publication number: 20200015170Abstract: An electronic device that provides modified electrical signals is described. An interface circuit in the electronic device may provide electrical signals for an antenna module, which may be coupled to the interface circuit by a cable, and the electrical signals may correspond to or may specify an output transmit-power level at the interface circuit. Then, the interface circuit may receive feedback about an input transmit-power level at the antenna module. Based on the feedback, a data rate and/or a modulation and coding scheme, the interface circuit may provide the modified electrical signals for the antenna module, where the modified electrical signals correspond to a modified output transmit-power level at the interface circuit. In some embodiments, the feedback is provided by repurposing, during a different operating mode, signal lines that otherwise specify an antenna pattern.Type: ApplicationFiled: August 21, 2019Publication date: January 9, 2020Inventors: Anand Krishnamachari, William Buel, Craig Owens, Eran Dor
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Patent number: 10433260Abstract: An electronic device that provides modified electrical signals is described. An interface circuit in the electronic device may provide electrical signals for an antenna module, which may be coupled to the interface circuit by a cable, and the electrical signals may correspond to or may specify an output transmit-power level at the interface circuit. Then, the interface circuit may receive feedback about an input transmit-power level at the antenna module. Based on the feedback, a data rate and/or a modulation and coding scheme, the interface circuit may provide the modified electrical signals for the antenna module, where the modified electrical signals correspond to a modified output transmit-power level at the interface circuit. In some embodiments, the feedback is provided by repurposing, during a different operating mode, signal lines that otherwise specify an antenna pattern.Type: GrantFiled: July 2, 2018Date of Patent: October 1, 2019Assignee: ARRIS Enterprises LLCInventors: Anand Krishnamachari, William Buel, Craig Owens, Eran Dor
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Patent number: 9559752Abstract: A network device may include a plug that couples with a socket to couple the network device to a PLC network. A position of the plug may be interchanged when the plug is coupled with the socket. In one example, the network device may determine a coupling orientation of the plug that indicates the position of the plug with respect to the socket. The plug includes a first plug terminal, a second plug terminal, a first ground plug terminal, and a second ground plug terminal. The network device may select a signal polarity for the plug based, at least in part, on the coupling orientation. The signal polarity indicates over which of the plug terminals data is to be transmitted for communication over the PLC network.Type: GrantFiled: September 24, 2015Date of Patent: January 31, 2017Assignee: QUALCOMM IncorporatedInventors: Anand Krishnamachari, Manjunath Anandarama Krishnam, Syed Adil Hussain, Purva Rameshchandra Rajkotia, Hassan Kaywan Afkhami