Bluetooth data forwarding

Patent metadata

Field	Value
Publication number	US-11832156-B2
Application number	US-202017068621-A
Country	US
Kind code	B2
Filing date	Oct 12, 2020
Priority date	Sep 6, 2017
Publication date	Nov 28, 2023
Grant date	Nov 28, 2023

Abstract

A Bluetooth (BT) device includes a host processor and a BT controller coupled by a Host Controller Interface (HCI) including a Host Controller Transport Layer and a HCI Driver. The host processor implements an applications layer and includes HCI firmware for communicating via the Host Controller Transport Layer with the BT controller. The BT controller includes a processor coupled to a memory and to a transceiver, and a RF driver. The HCI firmware also includes HCI command code for a user to define a topology of the BT network including configuring the BT device in a current chain including a plurality of BT devices including configuring from which BT device it receives data from and which BT device it forwards data to. For communicating data across the BT network the BT device forwards the data without host processor involvement in at least resending the data back to its BT controller.

First claim

What is claimed is:

1. A method comprising:
receiving, at a transceiver for a first BT device and from a second BT device, ACL data, wherein the first BT device comprises a controller and a host processor;
parsing, at the controller for the first BT device, the received ACL data without looping the received ACL data through the host processor or without waking up the host processor;
generating final ACL data, by the controller for the first BT device, based on the parsed ACL data; and
driving, by the controller for the first BT device, the transceiver for the first BT device to forward the final ACL data.

2. The method of claim 1 , wherein forwarding the final ACL data is to a predetermined BT device.

3. The method of claim 2 , wherein the predetermined BT device is determined by a current chain stored in the controller.

4. The method of claim 1 , wherein the ACL data comprises audio data.

5. The method of claim 1 , wherein the host processor sleeps while the controller receives the ACL data.

6. The method of claim 1 , wherein the host processor sleeps while the controller drives the transceiver.

7. The method of claim 1 , wherein parsing, at the controller for the first BT device, the received ACL data comprises parsing, at the controller for the first BT device, the received ACL data without waking up the host processor.

8. The method of claim 1 , wherein driving, by the controller for the first BT device, the transceiver for the first BT device to forward the final ACL data comprises driving, by the controller for the first BT device, the transceiver for the first BT device to forward the final ACL data to a BT speaker.

9. The method of claim 1 , wherein driving, by the controller for the first BT device, the transceiver for the first BT device to forward the final ACL data comprises driving, by the controller for the first BT device, the transceiver for the first BT device to forward the final ACL data to a BT camera.

10. The method of claim 1 , wherein the first and second BT devices are part of a BT camera system.

11. The method of claim 1 , wherein the first and second BT devices are part of a system that is installed in a stadium.

12. A device, comprising:
a transceiver configured to receive, from a first BT device, ACL data;
a host processor; and
a controller coupled to the host processor and transceiver, the controller configured to:
parse the received ACL data without looping the received ACL data through the host processor or without waking up the host processor;
generate final ACL data based on the parsed ACL data; and
drive the transceiver to forward the final ACL data.

13. The device of claim 12 , wherein the controller is formed on an integrated circuit (IC) comprising a substrate having at least a semiconductor surface.

14. The device of claim 12 , wherein forwarding the final ACL data is to a predetermined BT device.

15. The device of claim 14 , wherein the predetermined BT device is determined by a current chain stored in the controller.

16. The device of claim 12 , wherein the host processor is configured to sleep while the controller receives the ACL data.

17. The device of claim 12 , wherein the host processor is configured to sleep while the controller drives the transceiver.

18. The device of claim 12 , wherein the device is a BT speaker.

19. A system comprising:
a first BT device comprising:
a transceiver configured to receive ACL data from another BT device,
a host processor, and
a controller coupled to the host processor and transceiver, the controller configured to:
parse the received ACL data without looping the received ACL data through the host processor or without waking up the host processor,
generate final ACL data based on the parsed ACL data; and
drive the transceiver for the first BT device to forward the final ACL data; and

a second BT device comprising:
a transceiver configured to receive the final ACL data from the first BT device,
a processor, and
a controller.

20. The system of claim 19 , wherein the system is a BT camera system, and wherein the second BT device is a BT camera.

21. The system of claim 20 , wherein the system is installed in a stadium.

22. The system of claim 19 , wherein the system is a BT speaker system and wherein the second BT device is a BT speaker.

Assignees

• Texas Instruments Inc

Inventors

• Malovany Ram
• Loewy Chen
• Ziv Dotan
• Gersi Lior
• Cohen Liran

Classifications

• H04W84/18

  Self-organising networks, e.g. ad-hoc networks or sensor networks · CPC title

• H04W52/0235

  where the received signal is a power saving command · CPC title

• H04W4/80 Primary

  Services using short range communication, e.g. near-field communication [NFC], radio-frequency identification [RFID] or low energy communication · CPC title

• H04L69/12

  Protocol engines · CPC title

• H04R3/12

  for distributing signals to two or more loudspeakers {(specially adapted for hearing aids H04R25/407)} · CPC title