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公开(公告)号：US10003377B1
公开(公告)日：2018-06-19
申请号：US15383246
申请日：2016-12-19
Applicant: Cisco Technology, Inc.
Inventor： Michael A. Ramalho , Mihailo Zilovic , David A. Benham
Abstract: In a transmit method, a set of data eigenvectors that are based on a Prometheus Orthonormal Set (PONS) code construction and orthogonal to each other are stored, wherein each of the data eigenvectors is mapped to a unique multi-bit word. A pilot sequence representing a pilot eigenvector that is based on the PONS code construction and orthogonal to each of the data eigenvectors is generated. Input data is grouped into multi-bit words and ones of the data eigenvectors mapped to the multi-bit words are selected. A spread data sequence including the selected ones of the data eigenvectors and that is synchronized to the pilot sequence is generated. An acoustic signal including the synchronized pilot sequence and the spread data sequence is generated. The acoustic signal is transmitted.
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公开(公告)号：US10530417B2
公开(公告)日：2020-01-07
申请号：US15926720
申请日：2018-03-20
Applicant: Cisco Technology, Inc.
Inventor： Michael A. Ramalho , Mihailo Zilovic , David A. Benham
IPC: G10L19/02 , H04B1/69 , G10L19/16 , G10L19/022 , H04B1/66
Abstract: In a transmit method, a set of data eigenvectors that are based on a Prometheus Orthonormal Set (PONS) code construction and orthogonal to each other are stored, wherein the data eigenvectors are mapped to unique multi-bit words. A pilot sequence representing a pilot eigenvector that is based on the PONS code construction and orthogonal to each of the data eigenvectors is generated. Input data are grouped into multi-bit words and data eigenvectors among the data eigenvectors are selected based on the multi-bit words. A spread data sequence including the selected data eigenvectors and that is synchronized to the pilot sequence is generated. An acoustic signal including the synchronized pilot sequence and the spread data sequence is generated. The acoustic signal is transmitted.
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公开(公告)号：US20180227010A1
公开(公告)日：2018-08-09
申请号：US15926720
申请日：2018-03-20
Applicant: Cisco Technology, Inc.
Inventor： Michael A. Ramalho , Mihailo Zilovic , David A. Benham
Abstract: In a transmit method, a set of data eigenvectors that are based on a Prometheus Orthonormal Set (PONS) code construction and orthogonal to each other are stored, wherein the data eigenvectors are mapped to unique multi-bit words. A pilot sequence representing a pilot eigenvector that is based on the PONS code construction and orthogonal to each of the data eigenvectors is generated. Input data are grouped into multi-bit words and data eigenvectors among the data eigenvectors are selected based on the multi-bit words. A spread data sequence including the selected data eigenvectors and that is synchronized to the pilot sequence is generated. An acoustic signal including the synchronized pilot sequence and the spread data sequence is generated. The acoustic signal is transmitted.
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公开(公告)号：US20180175903A1
公开(公告)日：2018-06-21
申请号：US15383246
申请日：2016-12-19
Applicant: Cisco Technology, Inc.
Inventor： Michael A. Ramalho , Mihailo Zilovic , David A. Benham
CPC classification number: H04B1/69 , G10L19/0212 , G10L19/167 , H04B1/7103 , H04B11/00
Abstract: In a transmit method, a set of data eigenvectors that are based on a Prometheus Orthonormal Set (PONS) code construction and orthogonal to each other are stored, wherein each of the data eigenvectors is mapped to a unique multi-bit word. A pilot sequence representing a pilot eigenvector that is based on the PONS code construction and orthogonal to each of the data eigenvectors is generated. Input data is grouped into multi-bit words and ones of the data eigenvectors mapped to the multi-bit words are selected. A spread data sequence including the selected ones of the data eigenvectors and that is synchronized to the pilot sequence is generated. An acoustic signal including the synchronized pilot sequence and the spread data sequence is generated. The acoustic signal is transmitted.
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