US 9,756,455 B2Granted

Terminal and method for audio data transmission

AssigneesSony Corporation, Sony Mobile Communications Inc.

InventorsYusuke Kawabe, Mitsuyoshi Yasuda

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Abstract

Aspects of the disclosure provide a terminal adapted to transmit audio data via Bluetooth to a device. The terminal includes a controller adapted to detect configuration parameters of the device and optimally determine configuration parameters of the terminal, and a transmission module capable of transmitting a packet of a first packet type based on a first mode of the terminal and a packet of a second packet type based on a second mode of the terminal. The audio data is modulated by a first modulation mode in the first mode and the audio data is modulated by a second modulation mode in the second mode that is more efficient than the first modulation mode. When the device cannot operate in the second mode but can operate in the first mode, the controller causes the transmission module to create a packet of the first packet type containing the audio data.

Claims16

Dependent claims

A terminal adapted to transmit audio data to a device via a short-range data communications platform for connecting a plurality of devices for a plurality of applications including audio streaming, comprising:

circuitry configured to
detect configuration parameters of the device;
and
prepare a first packet of a first packet type based on a first mode of the terminal and a second packet of a second packet type based on a second mode of the terminal, wherein the audio data is modulated by a first modulation scheme in the first mode and the audio data is modulated by a second modulation scheme in the second mode, wherein the second modulation scheme, is more spectrally efficient than the first modulation scheme,
wherein, when the device cannot support the second mode but can support the first mode, the circuitry is configured to transmit the first packet of the first packet type containing the audio data to the device,
when the device supports both the first mode and the second mode, and has a logical link control and adaptation protocol (L2CAP) maximum transmission unit (MTU) size equal to or smaller than a MTU size threshold, the circuitry is configured to transmit the device the first packet of the first packet type containing the audio data, and
when the device supports both the first mode and the second mode, and has the logical link control and adaptation protocol (L2CAP) maximum transmission unit (MTU) larger than the MTU size threshold, the circuitry is configured to transmit to the device the second packet of the second packet type containing the audio data.

4 more elements

A method for transmitting audio data from a terminal to a device via a short-range data communications platform for connecting a plurality of devices for a plurality of applications including audio streaming, comprising:

detecting with circuitry configuration parameters of the device;
preparing with the circuitry a first packet of a first packet type based on a first mode of the terminal or a second packet of a second packet type based on a second mode of the terminal, wherein the audio data is modulated by a first modulation scheme in the first mode and the audio data is modulated by a second modulation scheme in the second mode, wherein the second modulation scheme is more spectrally efficient than the first modulation scheme;
transmitting the first packet of the first packet type containing the audio data to the device, when the device cannot receive the second packet of the second packet type but can receive the first packet of the first packet type;
when the device supports both the first mode and the second mode, and has a logical link control and adaptation protocol (L2CAP) maximum transmission unit (MTU) size equal to or smaller than a MTU size threshold, transmitting to the device the first packet of the first packet type containing the audio data, and
when the device supports both the first mode and the second mode and has the logical link control and adaptation protocol (L2CAP) maximum transmission unit (MTU) larger than the MTU size threshold, transmitting to the device the second packet of the second packet type containing the audio data.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/724,509Filed 28 May 2015
Published: US 2016/0353229 A11 Dec 2016
Granted: 5 Sep 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification6 codes

H04L 47/36
Flow control; Congestion control: by determining packet size, e.g. maximum transfer unit [MTU]
H04L 27/0008
Modulated-carrier systems: arrangements for allowing a transmitter or receiver to use more than one type of modulation
H04W 4/80
Services specially adapted for wireless communication networks; Facilities therefor: services using short range communication, e.g. near-field…
H04W 88/06
Terminal devices: adapted for operation in multiple networks or having at least two operational modes, e.g. multi-mode terminals