Texas Instruments Corporation

Sandeep Kamath

Leonardo William Estevez

Gregory P Stewart

Jason P Kriek

Sreeharsha Srinivas H Iyengar

Arun C Menon

A BLE network includes a first piconet including a first master scanner and a first group of low-power slave/advertisers for transmitting wireless advertisements. Circuitry in the first master/scanner wirelessly scans to detect an advertisement transmitted by a first slave/advertiser of the first group and transmits a connection request in response to the detecting, and transmits a schedule for subsequent advertisements after an initial advertisement by the first slave/advertiser. Circuitry in the first slave/advertiser transmits the initial advertisement, receives an acceptance a resulting connection request, establishes association with the first master scanner, and then causes the first slave/advertiser to go to sleep, to wake up and transmit subsequent advertisements according to the schedule and accept resulting connection requests, and transmits available data to the first master/scanner, and goes back to sleep.

BLE scatternet system and method

A system and method is disclosed for establishing authenticated Bluetooth Low Energy communication session between a slave device and a master device. The slave device lacks ability to control which mater device can connect to it; however, the after connection authentication process enables a slave device to terminate connection with unauthenticated master device.

System and method for peripheral initiated host arbitration

A BLE network includes a first piconet (A) including a first master scanner (-) and a first group of low-power slave/advertisers (-) for transmitting wireless advertisements. Circuitry () in the first master/scanner wirelessly scans to detect an advertisement () transmitted by a first slave/advertiser (-) of the first group and transmits a connection request () in response to the detecting, and transmits a schedule () for subsequent advertisements after an initial advertisement by the first slave/advertiser. Circuitry () in the first slave/advertiser transmits the initial advertisement (), receives an acceptance a resulting connection request, establishes association () with the first master scanner, and then causes the first slave/advertiser to go to sleep, to wake up and transmit subsequent advertisements according to the schedule () and accept resulting connection requests, and transmits available data to the first master/scanner, and goes back to sleep.

A BLE network includes a first piconet (A) including a first master scanner (-) and a first group of low-power slave/advertisers (-) for transmitting wireless advertisements and for establishing wireless connections with the first master/scanner. Circuitry () in the first master/scanner wirelessly scans to detect an advertisement () transmitted by a first slave/advertiser (-) of the first group and transmits a connection request () in response to the detecting, and transmits a schedule () for subsequent advertisements after an initial advertisement by the first slave/advertiser to complete synchronization of the first master/scanner with the first slave/advertiser. Circuitry () in the first slave/advertiser transmits the initial advertisement (), receives an acceptance a resulting connection request, establishes association () with the first master scanner, and then causes the first slave/advertiser to go to sleep, to wake up and transmit subsequent advertisements according to the schedule () and accept resulting connection requests, and transmits available data to the first master/scanner, and goes back to sleep.

Growing community of inventors

San Diego, CA, United States of America

Sandeep Kamath