Patents by Inventor Amir Keyvam Khandani
Amir Keyvam Khandani 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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Patent number: 9136923Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets S1 for each codeword c1 of the codebook C. Each codeword subset S1 defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset S1 are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.Type: GrantFiled: November 23, 2014Date of Patent: September 15, 2015Assignee: Apple Inc.Inventors: Wen Tong, Hosein Nikopour, Amir Keyvam Khandani, Hua Xu, Ming Jia, Peiying Zhu, Dong-Sheng Yu
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Publication number: 20150103938Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets S1 for each codeword c1 of the codebook C. Each codeword subset S1 defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset S1 are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.Type: ApplicationFiled: November 23, 2014Publication date: April 16, 2015Inventors: Wen Tong, Hosein Nikopourdeilami, IV, Amir Keyvam Khandani, Hua Xu, Ming Jia, Peiying Zhu, Dong-Sheng Yu
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Patent number: 8897384Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets Si for each codeword ci of the codebook C. Each codeword subset Si defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset Si are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.Type: GrantFiled: November 5, 2013Date of Patent: November 25, 2014Assignee: Apple Inc.Inventors: Wen Tong, Hosein Nikopourdeilami, IV, Amir Keyvam Khandani, Hua Xu, Ming Jia, Peiying Zhu, Dong-Sheng Yu
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Publication number: 20140064395Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets Si for each codeword ci of the codebook C. Each codeword subset Si defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset Si are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.Type: ApplicationFiled: November 5, 2013Publication date: March 6, 2014Applicant: Apple Inc.Inventors: Wen Tong, Hosein Nikopourdeilami, IV, Amir Keyvam Khandani, Hua Xu, Ming Jia, Peiying Zhu, Dong-Sheng Yu
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Patent number: 8605812Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets Sl for each codeword cl of the codebook C. Each codeword subset Sl defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset Sl are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.Type: GrantFiled: May 4, 2012Date of Patent: December 10, 2013Assignee: Apple Inc.Inventors: Wen Tong, Hosein Nikopourdeilami, IV, Amir Keyvam Khandani, Hua Xu, Ming Jia, Peiying Zhu, Dong-Sheng Yu
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Publication number: 20120219083Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets Sl for each codeword cl of the codebook C. Each codeword subset Sl defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset Sl are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.Type: ApplicationFiled: May 4, 2012Publication date: August 30, 2012Applicant: Rockstar Bidco, LPInventors: Wen Tong, Hosein Nikopourdeilami, Amir Keyvam Khandani, Hua Xu, Ming Jia, Peiying Zhu, Dong-Sheng Yu
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Patent number: 8189714Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets Si for each codeword ci of the codebook C. Each codeword subset Si defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset Si are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.Type: GrantFiled: May 4, 2006Date of Patent: May 29, 2012Assignee: Rockstar Bidco, LPInventors: Wen Tong, Hosein Nikopourdeilami, Amir Keyvam Khandani, Hua Xu, Ming Jia, Peiying Zhu, Dong-Sheng Yu
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Publication number: 20090129502Abstract: A codebook C is provided in a MIMO transmitter as well as a MIMO receiver. The codebook C will include M codewords ci, where i is a unique codeword index for each codeword ci. Each codeword defines weighting factors to apply to the MIMO signals, and may correspond to channel matrices or vectors to apply to the MIMO signals prior to transmission from the respective antennas of the MIMO transmitter. The present invention creates codeword subsets Si for each codeword ci of the codebook C. Each codeword subset Si defines L codewords cj, which are selected from all the codewords ci in the codebook C. The codewords cj in a codeword subset Si are the L codewords in the entire codebook that best correlate with the corresponding codeword ci.Type: ApplicationFiled: May 4, 2006Publication date: May 21, 2009Applicant: NORTEL NETWORKS LIMITEDInventors: Wen Tong, Hosein Nikopourdeilami, Amir Keyvam Khandani, Hua Xu, Ming Jia, Peiying Zhu, Dong-Sheng Yu