Sony Ericsson Mobile Communications Ab

Dopple IP B.v.

Sony Mobile Communications Ab

Tjapko Uildriks

Jacobus Cornelis Haartsen

Aalbert Stek

Erwin Weinans

Barteld Trip

Johannes Lucas Schreuder

Bart Trip

Johan Anton Eduard Rosenberg

Erwin G H Weinans

Franciscus N M Hooijschuur

Bart B Trip

A communication protocol provides diversity in UL and DL between a headset and a host device that transmits right and left audio data on separate channels. Each ear piece establishes an independent channel to the host device, and there is another channel between them. Each ear piece monitors not only its own channel to the host, but also the other ear piece's channel to the host. One ear piece may acknowledge the host device for a correctly received packet, which the other ear piece missed, on the other ear piece's channel to the host device, avoiding retransmissions. The eavesdropped data is provided to the other ear piece on the shared channel, providing for path diversity in DL. The ear pieces may exchange picked-up voice content to send to the host device, providing for path diversity in UL.

Wireless stereo headset with bidirectional diversity

A communication protocol provides improved bidirectional communication performance between a wireless stereo headset () and a host device (). The communication protocol provides communication paths between the host device () and each ear piece () of the wireless stereo headset (), as well as a communication path () between the two ear pieces (). In addition to receiving audio information from the host device (), each ear piece () may request audio information from the other ear piece (), thus obtaining path diversity in the downlink. One ear piece () may acknowledge the host device () for a correctly received packet, which the other ear piece () missed, avoiding retransmissions. The ear pieces () may exchange picked-up voice content to send to the host device (), providing for path diversity in the uplink.

A communication protocol provides improved communication performance between a wireless stereo headset () and a host device (). The communication protocol provides communication paths between the host device () and each ear piece () of the wireless stereo headset (), as well as a communication path between the two ear pieces () of the wireless stereo headset (). In addition to receiving audio information from the host device (), each ear piece () may request audio information from the other ear piece (), thus obtaining path diversity. Using special control messages on connection between the ear pieces (), the ear pieces () inform each other which audio information has been received successfully from the host device (). Using a common clock broadcast by the host device (), the ear pieces () may indicate which audio information was missed and should be forwarded on the communication path (P2,) between the two ear pieces ().

Wireless stereo headset with diversity

A headset is proposed for use with a communication and/or multimedia device, said headset comprising an interface for receiving input data, a processing unit for processing said input data to generate audio output signals, a speaker for outputting said audio output signals in a mono mode and connecting means for connecting the headset to a power supply in order to charge a battery or an accumulator being provided within said headset. Said connecting means are also connectable to an additional speaker device forming alone or together with said speaker of said headset a stereo headphone wherein said processing unit processes the input data to generate stereo output signals when said speaker device is connected to said headset.

Headset for use with a communication and/or multimedia device

A wireless communication apparatus and method are provided for operation in a communication network. The wireless communication apparatus comprises a receiver unit operative to receive control data and audio data from an audio gateway; a control unit operative to use the control data to provide a connection between the wireless communication apparatus and the audio gateway for communication of the audio data; and a transmitter unit. The receiver unit is operative to receive from another wireless communication apparatus a request for the control data. The control unit is operative to forward via the transmitter unit the control data to the other wireless communication apparatus in response to the request. The other communication apparatus and a method for requesting the control data are also provided.

Audio broadcast in a network

A voltage conversion circuit for a host electronic device includes a buck converter circuit having an input terminal coupled to a first node and having an output terminal coupled to a second node, a switched capacitor voltage converter circuit having an input coupled to the first node and an output coupled to the second node. The buck converter circuit may be configured to be selectively enabled and disabled in response to a control signal, and the switched capacitor voltage converter circuit may be configured to operate when the buck converter circuit is disabled.

Switched mode voltage converter with low-current mode and methods of performing voltage conversion with low-current mode

Bluetooth standard provides the applications with different profiles which allow for example only a specific number of devices operable in one network using the same profile. Without changing the Bluetooth standards the described apparatus and method provide a solution to allow wireless devices to receive data addressed to other wireless devices. Therefore a wireless electronic apparatus for Bluetooth communication receives data specifically addressed to said wireless electronic apparatus and to a wireless electronic device for Bluetooth communication, said wireless electronic device being operable to receive data specifically addressed to said wireless electronic device, said wireless electronic apparatus being different from said wireless electronic device. This can be realised for example by a wrist display which can pickup the electromagnetic waves containing the audio signals sent to the headset. Afterwards the properties can be displayed on the wrist to inform the user about the status of the audio signals or the cell phone transmitting the audio signals.

Distributed bluetooth system

An antenna device for a portable device has an antenna loop of conducting material to be connected to radio circuitry in the portable device. The antenna loop is positioned opposite a ground plane of a PCB. Also, the antenna device also comprises at least one battery, which is positioned in the extension of a first side of the PCB, and acts as an extension of the ground plane of the PCB.

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Anderen, Netherlands

Tjapko Uildriks