Wavefront muxing and demuxing for cloud data storage and transport

Patent metadata

Field	Value
Publication number	US-11782945-B2
Application number	US-201816215638-A
Country	US
Kind code	B2
Filing date	Dec 11, 2018
Priority date	Jul 30, 2012
Publication date	Oct 10, 2023
Grant date	Oct 10, 2023

Abstract

An apparatus includes N audio receivers positioned in a pre-defined geometry with respect to P audio sources to receive P audio signals from the P audio sources; N data sets coupled to the N audio receivers to sample the received P audio signals into N data streams; a plurality of storage devices coupled to the N data sets to store the N data streams; and a post processor coupled to the plurality of storage devices to generate output signals corresponding to reconstituted P audio signals using a wavefront demultiplexing transformation, wherein N and P are positive integers and N≥P. The post processor has inputs receiving data retrieved from the plurality of storage devices and outputs providing the output signals.

First claim

What is claimed is:

1. An apparatus comprising:
N audio receivers positioned in a pre-defined geometry with respect to P audio sources to receive P audio signals from the P audio sources, the received P audio signals having various time delays corresponding to the pre-defined geometry, the pre defined geometry being such that the received P audio signals correspond to P orthogonal beams;
N data sets coupled to the N audio receivers to sample the received P audio signals into N data streams;
a plurality of storage devices coupled to the N data sets to store the N data streams; and
a post processor coupled to the plurality of storage devices to generate output signals corresponding to reconstituted P audio signals using a wavefront demultiplexing transformation and based on the various time delays,
wherein N and P are positive integers and N≥P, and
wherein the post processor has inputs receiving data retrieved from the plurality of storage devices and outputs providing the output signals.

2. The apparatus of claim 1 further comprising:
a plurality of audio transmitters coupled to the post processor to transmit the reconstituted P audio signals.

3. The apparatus of claim 1 wherein the pre-defined geometry includes source distances among the P audio sources, distances among the N audio receivers, and distances between the N audio receivers and the P audio sources.

4. The apparatus of claim 1 wherein the post processor comprises a digital beam forming processor to generate the P orthogonal beams corresponding to the reconstituted P audio signals.

5. The apparatus of claim 4 wherein each of the P orthogonal beams has a peak at a direction associated with one of the P audio sources.

6. The apparatus of claim 1 wherein the wavefront demultiplexing transformation includes information related to the pre-defined geometry.

7. The apparatus of claim 6 wherein the information related to the pre-defined geometry includes the various time delays from the P audio sources to the N data sets.

8. The apparatus of claim 1 wherein one of the outputs is a linear combination of the inputs weighted by a corresponding weighting parameter.

9. A method comprising:
receiving P audio signals from P audio sources using N audio receivers positioned in a pre-defined geometry with respect to the P audio sources, the received P audio signals having various time delays corresponding to the pre-defined geometry, the pre defined geometry being such that the received P audio signals correspond to P orthogonal beams;
sampling the received P audio signals into N data streams using N data sets coupled to the N audio receivers;
storing the N data streams in a plurality of storage devices coupled to the N data sets; and
generating output signals corresponding to reconstituted P audio signals using a post processor performing a wavefront demultiplexing transformation and based on the various time delays,
wherein N and P are positive integers and N≥ P, and
wherein the post processor has inputs receiving data retrieved from the plurality of storage devices and outputs providing the output signals.

10. The method of claim 9 further comprising:
transmitting the reconstituted P audio signals by a plurality of audio transmitters coupled to the post processor.

11. The method of claim 9 wherein the pre-defined geometry includes source distances among the P audio sources, distances among the N audio receivers, and distances between the N audio receivers and the P audio sources.

12. The method of claim 9 wherein generating the output signals comprises generating the P orthogonal beams corresponding to the reconstituted P audio signals using a digital beam forming processor.

13. The method of claim 12 wherein each of the P orthogonal beams has a peak at a direction associated with one of the P audio sources.

14. The method of claim 9 wherein the wavefront demultiplexing transformation includes information related to the pre-defined geometry.

15. The method of claim 14 wherein the information related to the pre-defined geometry includes the various time delays from the P audio sources to the N data sets.

16. The method of claim 9 wherein one of the outputs is a linear combination of the inputs weighted by a corresponding weighting parameter.

17. A communication system comprising:
P audio sources generating P audio signals; and
an apparatus coupled to the P audio sources, the apparatus comprising:
N audio receivers positioned in a pre-defined geometry with respect to the P audio sources to receive the P audio signals, the received P audio signals having various time delays corresponding to the pre-defined geometry, the pre defined geometry being such that the received P audio signals correspond to P orthogonal beams;
N data sets coupled to the N audio receivers to sample the received P audio signals into N data streams;
a plurality of storage devices coupled to the N data sets to store the N data streams; and
a post processor coupled to the plurality of storage devices to generate output signals corresponding to reconstituted P audio signals using a wavefront demultiplexing transformation and based on the various time delays,
wherein N and P are positive integers and N≥P, and
wherein the post processor has inputs receiving data retrieved from the plurality of storage devices and outputs providing the output signals.

18. The communication system of claim 17 wherein the apparatus further comprises:
a plurality of audio transmitters coupled to the post processor to transmit the reconstituted P audio signals.

19. The communication system of claim 17 wherein the pre-defined geometry includes source distances among the P audio sources, distances among the N audio receivers, and distances between the N audio receivers and the P audio sources.

20. The communication system of claim 17 wherein one of the outputs is a linear combination of the inputs weighted by a corresponding weighting parameter.

Assignees

• Spatial Digital Systems Inc

Inventors

• Chang Donald C D
• Lee Juo-Yu
• Chen Steve K

Classifications

• G06F16/258 Primary

  Data format conversion from or to a database · CPC title

• G06F11/1076 Primary

  Parity data used in redundant arrays of independent storages, e.g. in RAID systems · CPC title

• G06F11/2058

  using more than 2 mirrored copies · CPC title

• G06F11/2071

  using a plurality of controllers · CPC title

• H04L67/10

  in which an application is distributed across nodes in the network (software deployment G06F8/60; multiprogramming arrangements G06F9/46) · CPC title