Systems, methods and apparatus for transmitting data over a voice channel of a telephone network using linear predictive coding based modulation

• US 8,200,482 B2
• Filed: 03/31/2008
• Issued: 06/12/2012
• Est. Priority Date: 03/31/2008
• Status: Active Grant

• Current Assignee: Dish Technologies LLC (Dish Network Corporation)
• Original Assignee: Echostar Technologies LLC (Echostar Corporation)
• Inventors: Manne, Gopi K.
• Primary Examiner(s): Neway, Samuel G
• Application Number:
  US12/058,947
• Publication Number:
  US 20090245276A1
• Time in Patent Office: 1,534 Days
• Field of Search: 704200-230, 370464-473
• US Class Current: 704/219
• CPC Class Codes: G10L 19/00 Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis in musical instruments G10H
• CPC Class Codes: G10L 19/07 Line spectrum pair [LSP] vocoders
• CPC Class Codes: H04M 11/066 Telephone sets adapted for data transmision
• CPC Class Codes: H04N 21/6181 involving transmission via a mobile phone network arrangements for providing broadcast or conference services to substation in data switching networks in combination with wireless systems H04L12/189; wireless uplink channel access H04W74/004

Abstract

The various embodiments described herein generally provide apparatus, systems and methods which facilitate the transmission of data between a client device and a remote device over a voice channel of a telephone network. More particularly, data from a client device is modulated into an audio signal using linear predictive coding (LPC) synthesis and transmitted to the remote device during a phone call. The remote device receives the audio signal and performs linear predictive coding (LPC) analysis to extract the transmitted data.

Claims

1. A method for transmitting data between a client device and a remote device, the method comprising:

providing a first codebook of line-spectral pair (LSP) parameters, each value of the line-spectral pair (LSP) parameters corresponding with a particular value of input data;

identifying data for transmission from a client device to a remote device;

selecting the line-spectral pair (LSP) parameters from the first codebook corresponding with a value of the data for transmission;

synthesizing the selected line-spectral pair (LSP) parameters to modulate an audio signal;

transmitting the audio signal from the client device to the remote device over a voice channel of a telephone network;

receiving the audio signal at the remote device;

performing linear predictive code (LPC) based analysis on the audio signal to identify the line-spectral pair (LSP) parameters for the received audio signal;

providing a second codebook of line-spectral pair (LSP) parameters at the remote device, the line-spectral pair (LSP) parameters of the second codebook corresponding with the line-spectral pair (LSP) parameters of the first codebook; and

searching the second codebook for the identified line-spectral pair (LSP) parameters to identify the value of the data corresponding with the identified line-spectral pair (LSP) parameters.

2. The method of claim 1, wherein the telephone network comprises a wireless telephone network.

3. The method of claim 2, wherein transmitting the audio signal further comprises:

transmitting the audio signal from the client device to a wireless telephone; and

transmitting the audio signal from the wireless telephone to the remote device over a wireless telephone network.

4. The method of claim 3, wherein transmitting the audio signal from the client device to a wireless telephone further comprises:

transmitting the audio signal from the client device to the wireless telephone over a wireless connection.

5. The method of claim 3, wherein transmitting the audio signal from the client device to a wireless telephone further comprises:

transmitting the audio signal from the client device to the wireless telephone over a cable communicatively coupled between the client device and the wireless telephone.

6. The method of claim 1, wherein transmitting the audio signal from the client device to the remote device further comprises:

creating at least one packet from the audio signal, wherein a size of the packet corresponds with a size of a frame utilized by the wireless telephone network.

7. A method for receiving data from a remote device through a wireless telephone network, the method comprising:

providing a codebook of line-spectral pair (LSP) parameters, each value of the line-spectral pair (LSP) parameters corresponding with a particular value of input data;

receiving an audio signal from the remote device through a wireless telephone network;

performing linear predictive code (LPC) based analysis on the audio signal to identify line-spectral pair (LSP) parameters for the audio signal, the audio signal originating from the remote device;

searching the codebook for the identified line-spectral pair (LSP) parameters to identify a value of data corresponding with the identified line-spectral pair (LSP) parameters;

identifying second data for transmission to the remote device;

searching the codebook to select line-spectral pair (LSP) parameters corresponding with the second data;

synthesizing the selected line-spectral pair (LSP) parameters to modulate a second audio signal; and

transmitting the second audio signal to the remote device over the wireless telephone network.

8. The method of claim 7, wherein searching the codebook further comprises:

utilizing a best fit function to identify the value of the data based on the identified line-spectral pair (LSP) parameters.

9. The method of claim 7, wherein the data comprises ordering information, and wherein the method further comprises:

generating a bill for a user of the client device based on the ordering information.

10. An entertainment device comprising:

an input module that receives video content from a content source;

a processor communicatively coupled to the input module that outputs the video content for presentation on a presentation device and further aggregates data regarding the video content;

a storage medium that stores a first codebook of line-spectral pair (LSP) parameters, each value of the line-spectral pair (LSP) parameters corresponding with a particular value of input data;

an interface module communicatively coupled to the processor and communicatively coupled to a wireless telephone that;

initiates a phone call to a remote device through the wireless telephone;

searches the codebook to select line-spectral pair (LSP) parameters corresponding with the data;

synthesizes the selected line-spectral pair (LSP) parameters to modulate an audio signal;

transmits the audio signal to the wireless telephone, wherein the wireless telephone transmits the audio signal to the remote device over a wireless telephone network during the phone call;

receives a second audio signal from the wireless telephone, the second audio signal originating from the remote device;

performs linear predictive code (LPC) analysis on the audio signal to identify second line-spectral pair (LSP) parameters for the audio signal; and

searches the codebook for the identified second line-spectral pair (LSP) parameters to determine a value of data corresponding with the identified second line-spectral pair (LSP) parameters.

11. The entertainment device of claim 10, wherein the interface module comprises a wireless transceiver that communicates with the wireless telephone.

12. The entertainment device of claim 11, wherein the wireless transceiver is configured as a wireless headset of the wireless telephone.

13. The entertainment device of claim 10, wherein the interface module comprises an input port that receives a cable, the cable communicatively coupling the interface module and the wireless telephone.

14. A call processing system comprising:

an interface module that receives a phone call from a client device, the phone call including data modulated into an audio signal;

a storage medium that stores a codebook of line-spectral pair (LSP) parameters, each value of the line-spectral pair (LSP) parameters corresponding with a particular value of input data;

a decoder communicatively coupled to the interface module and communicatively coupled to the storage medium that;

receives an audio signal from a telephone network, the telephone network communicatively coupling the interface module to a client device, the audio signal originating from the client device;

performs linear predictive code (LPC) based analysis on the audio signal to identify line-spectral pair (LSP) parameters for the audio signal; and

searches the codebook for the identified line-spectral pair (LSP) parameters to determine a value of data corresponding with the identified line-spectral pair (LSP) parameters;

a processor that associates the data modulated into an audio signal with stored information regarding the client device;

wherein the processor generates second data for transmission to the client device, and wherein the interface module;

receives the second data for transmission to the client device;

searches the codebook to select second line-spectral pair (LSP) parameters corresponding with the second data

synthesizes the second line-spectral pair (LSP) parameters to modulate a second audio signal; and

transmits the second audio signal to the client device over the telephone network.

15. The call processing system of claim 14, wherein the interface module is communicatively coupled to the client device through a wireless telephone of the telephone network.

16. The call processing system of claim 14, wherein:

the client device comprises an entertainment device;

the data includes video ordering information; and

the processor generates a bill for a user of the client device based on the video ordering information and the stored information.