339results about "Near-field systems with structural receiver" patented technology

A wearable device includes a housing, a first short range transceiver for far field communication disposed within the housing, a second short range transceiver for near field communication disposed within the housing, wherein the second short range transceiver for near field communications comprises a core and a plurality of coil turns wrapped around the core. The wearable device further includes a generally planar printed circuit board disposed within the housing and having a plurality of components mounted thereto. The core is mounted perpendicularly to the plurality of components mounted on the generally planar printed circuit board to thereby reduce electromagnetic interference. The wearable device may be an earpiece. The core may be mounted at a posterosuperior portion of the wearable device.

A power transmitter 50 is usable in a wireless power transmission system for transmitting power wirelessly. The power transmitter 50 includes a power transmitting section 51 for transmitting power; a communication section 52 for communicating information, for controlling the transmission of the power, with the power receiver 60; and a control section 53 for controlling the power transmitting section 51 such that the power to be sent out by the power transmitting section 51 is higher while the communication section 52 is performing the communication.

An article of functional clothing comprises a garment; electrically conductive fibers integrated into the garment in a predetermined pattern to form an induction loop around the garment; and an activator unit arranged at a predetermined location on the induction loop to establish electrical connection and thus activate the induction loop, and to provide an interface to at least one portable electronic device.

A receiving antenna circuit is arranged in a reactive near-field of a modulated magnetic induction signal and forms a narrow band-pass filter. The output of the antenna circuit is not subjected to any frequency translation prior to digitising, and the signal may nevertheless be digitised with low resolution, which radically reduces the power consumption of the receiving circuits. The reduction in power consumption is of several orders of magnitude, which allows implementation of such receiving circuits in battery-driven devices such as hearing devices without substantially affecting the battery life.

Various energy harvesting and control techniques are used to power and control electronic accessories from the audio output channels and microphone input channel of mobile digital devices while preserving audio input and output functionality. One technique uses one of the stereophonic audio channels to generate power, and the other in conjunction with the microphone jack to enable bi-directional communications while preserving audio input and output. Another technique allows a low powered electronic accessory with bi-directional communications to be supported while simultaneously supporting audio input & stereo output. These techniques facilitate the ability to play music, narration and instruction and to receive oral responses and instruction with no perceived loss or gaps, even while using the audio jack of a mobile digital device to harvest energy and bi-directional communication.

The present invention relates to secure paring of electronically controlled devices adapted to communicate with each other. Thus, a medical system is provided comprising a first unit and a second unit, the system comprising first means of communication allowing a first group of data types to be transmitted between the first unit and the second unit, and second means of communication allowing a second group of data types to be transmitted between the first unit and the second unit. In this way different properties of the two means of communication can be used to secure that certain data, e.g. during pairing of the two devices, can be transmitted in a more controlled way whereas other data can be transmitted in a less controlled way.

The present invention uses mechanical sound waves as sound waves as signal carriers for establishing wireless connections for wide varieties of devices. Example applications include computer mice, computer keyboard, video game controller, wireless telephone, cellular phone, household appliance control, ID device, and security system.

Frequency conversion methods and systems for a transceiver for Bluetooth and near field communication. NFC data may be received and / or transmitted via the NFC radio and Bluetooth data may be received and / or transmitted via the Bluetooth radio. With an integration of frequency conversion for Bluetooth and NFC, both systems may operate from a single frequency source, thereby reducing part count and power consumption. Communication between Bluetooth and NFC channels may be enabled via a single chip.

An apparatus comprising: a transducer suitable for generating an acoustic sound pressure wave being configured to: magnetically couple the apparatus to a further apparatus transducer for transferring data.

Adapters (10) for use with portable electronic communications devices (12) such as cellular phones, smart phones, and personal digital assistants can facilitate use of the devices (12) in half-duplex communications modes such as push to talk (PTT) and land portable radio (LMR). The adapters (10) can include a case (18) configured to receive the communications device (12), and a button or key (40) mounted on the case. The key (40) communicates with the communications device (12) when the communications device (12) is disposed in the case (18), and is operable to generate on a selective basis an input corresponding to a transmit command that causes the communications device (10) to transmit. The adapters (10) can also include a speaker module and a microphone that communicate with the communications device (10) via a connector (28) on the case (18), or wireless transceivers (41a,41b).

Embodiments consistent with the present disclosure provide a multifunctional LED device and a multifunctional speaker system. The multifunctional LED device includes a power supply unit configured to supply power; a control unit configured to process audio signals and control signals; a speaker configured to play audio signals, an audio power amplifier configured to drive the speaker, a wireless transceiver configured to receive and send data, and an LED lighting unit. Further, the wireless transceiver may communicate with both remote smart terminals and other multifunctional LED devices. The multifunctional speaker system may include several multifunctional LED devices and a smart terminal. The smart terminal may communicate with all the multifunctional LED devices. The multifunctional LED devices may communicate with each other. Two of the multifunctional LED devices may form a 2.0-channel speaker system. Other speaker systems such as 2.1-channel, 5.1-channel, 7.1-channel, speaker systems etc., may also be realized by using more multifunctional LED devices. Embodiments consistent with the present disclosure are easy to install, require little wiring, and do not require adding a separate wireless transceiver, or a separate remote control unit or a light switch. Embodiments consistent with the present disclosure support wireless lighting control and provide efficient indoor lighting.

The invention relates to the technical field of Bluetooth equipment and particularly relates to a method for connection between an earphone and a sound signal emitting equipment. The method comprises steps of establishing a functional module framework using computer program instructions to control a computer system, wherein the computer program instructions are stored in the readable storage medium of a computer; and if connection between the primary side earphone and the sound signal emitting equipment is suddenly broken, directly establishing connection between the secondary side earphone and the sound signal emitting equipment to enable the function of the secondary side earphone to be switched to the function of the primary side earphone. The additional manual operation of the user is not required. By seamless switching between the secondary side earphone and the sound signal emitting equipment, the operation flow is simplified, the switching efficiency is improved, the Bluetooth switching is enabled to be more suitable for wider scenes, and the user is provided with the more convenient, smoother and more perfect experience. The pair of earphone provided by the invention has the functional module framework and the computer programs of the functional module framework can be entered and implemented, so as to achieve the method.

The invention provides a method for achieving a precise and synchronous playing function of a wireless Bluetooth earphone. The method includes the following steps that a smart device emits an audio signal to a left Bluetooth earphone body, the left Bluetooth earphone body transmits the audio signal to a right Bluetooth earphone body, and the left Bluetooth earphone body and the right Bluetooth earphone body conduct Bluetooth clock synchronization; at a certain clock moment of a Bluetooth clock, the left Bluetooth earphone body and the right Bluetooth earphone body trigger respective DMA controllers simultaneously for the first time, and the DMA controllers of the left and right Bluetooth earphone bodies access the audio signal at the same time; the left and right Bluetooth earphone bodiesrepeatedly trigger the DMA controllers every a certain period of time under the audio clock respectively, and the DMA controllers of the left and right Bluetooth earphone bodies are adjusted to play the audio signal simultaneously and send the audio signal to respective playing devices. According to the method, firstly, clock synchronization is conducted on the left and right Bluetooth earphone bodies, and on the basis of the clock synchronization, access of data is achieved through respective DMA controllers to achieve the precise and synchronous playing function.

A Bluetooth device comprises a Bluetooth module in charge of wireless transmission, a loudspeaking module in charge of playing an acoustical signal received by the Bluetooth module, a processing unitcapable of controlling the Bluetooth device to be switched to energy saving state and an active state judging unit; wherein the active state judging unit is provided with an induction component and asensing circuit electrically connected with the induction component, the sensing circuit is used for sensing variation of one characteristic value of the induction component and outputting an energy saving instruction to the processing unit corresponding to the variation of the characteristic value, thus the processing unit can control the Bluetooth device to be switched to the energy saving state.

Frequency conversion methods and systems for a transceiver for Bluetooth and near field communication. NFC data may be received and / or transmitted via the NFC radio and Bluetooth data may be received and / or transmitted via the Bluetooth radio. With an integration of frequency conversion for Bluetooth and NFC, both systems may operate from a single frequency source, thereby reducing part count and power consumption. Communication between Bluetooth and NFC channels may be enabled via a single chip.

The invention discloses a multifunctional light-emitting diode (LED) device and a multifunctional loud speaker box system. The multifunctional LED device comprises an LED drive and power supply unit, a controller unit, an audio power amplifier unit, a loudspeaker unit, a wireless receiving and dispatching module and an LED light source assembly. The wireless receiving and dispatching module keeps in communication with a smart terminal, as well as communicates with other LED devices. The multifunctional loud speaker box system comprises a plurality of multifunctional LED devices and a smart terminal, wherein the smart terminal is capable of communicating with each multifunctional LED device, every two multifunctional LED devices are capable of communicating with each other, two multifunctional LED devices form a 2.0 sound track, and a 2.1 sound track, a 5.1 sound track or a 7.1 sound and the like can be configured as needed by adding configuration number of multifunctional LED devices. With no need in changing current arrangement of wire and without any additional equipment such as a wireless audio transmission studio camera, a remote control or a peripheral dimmer switch, the multifunctional LED device and the multifunctional loud speaker box system are convenient to use, support wireless dimmer and supply everyday illumination.

A magnetic communication system includes a transmitter have a single coil transducer, and a receiver having a three orthogonally oriented coil transducers. The signal processing circuitry in the receiver adjusts the phases of the signals received by the three transducers to produce signals which are in-phase. The signals are then summed to provide an output signal from the receiver. The processing circuitry adjusts the phases of the incoming signals either serially or in parallel. Transmissions from the receiver to the transmitter are also phase adjusted in accordance with the same adjustments used in reception.

The embodiment of the invention provides a wireless communication system and equipment, and the method comprises the steps that a first device receives audio data from a sound source device through afirst wireless communication link, forwards at least one part of the audio data to a second device through a second wireless communication link, and provides link information of the first device and asound source device to the second device; the second device evaluates the channel quality between the second device and a sound source device based on the link information of the first device and thesound source device; the first device evaluates the channel quality between the first device and a sound source device; and the first device determines whether to exchange a master-slave role with the second device based on the channel quality between the second device and the sound source device and the channel quality between the first device and the sound source device. The master-slave role can be effectively adjusted, and the stable performance in the communication process is ensured.

A wristband wirelessly connects to a mobile phone allowing a user to talk on the mobile phone by using the wristband. The wristband includes a transmitter / receiver, a speaker and a microphone. The transmitter / receiver wirelessly pairs with the mobile phone. When the mobile phone receives an incoming call, a signal is sent to a vibrator housed within the transmitter / receiver and causes the wristband to vibrate. To connect to the call, a user can push a button located on the wristband or stretch the speaker piece and place the speaker in between his / her fingers. To disconnect from the call, the user can push the button or alternatively, release the speaker piece from in between his / her fingers which automatically triggers the transmitter / receiver to disconnect from the call.

A parametric loudspeaker system and method for reducing distortion in a decoupled audio wave by creating a double sideband parametric ultrasonic signal that substantially approximates a non-square-rooted modulation envelope and emitting a parametric ultrasonic wave that corresponds to the double sideband parametric ultrasonic signal from a parametric loudspeaker at a sufficient amplitude to drive the surrounding air into saturation.

The invention provides a low-power-consumption one-to-two Bluetooth headset. The Bluetooth headset comprises a main headset and a secondary headset, wherein a first Bluetooth chip is embedded into the main headset; the main headset comprises a first Bluetooth physical layer; a second Bluetooth chip is embedded into the secondary headset; the secondary headset comprises a second Bluetooth physical layer; the first Bluetooth physical layer comprises a first 2.4GHz radio-frequency module and a first 10MHz radio-frequency module; the second Bluetooth physical layer comprises a second 10MHz radio-frequency module which has the same structure as the first 10MHz radio-frequency module, and a second 2.4GHz radio-frequency module which has the same structure as the first 2.4GHz radio-frequency module; the first 2.4GHz radio-frequency module communicates with audio playing equipment; and the first 10MHz radio-frequency module and the second 10MHz radio-frequency module perform microwave communication, and are used for switching microwaves between 2.4GHz and 10MHz. The first Bluetooth chip in the main headset communicates with the second Bluetooth chip in the secondary headset through a Bluetooth protocol, and 2.4GHz radio frequency is switched to 10MHz radio frequency through the main headset, thereby effectively lowering the power consumption, and effectively prolonging the service time of the headset.

The present invention relates to secure paring of electronically controlled devices configured to communicate with each other. A medical system is provided comprising a first unit and a second unit, the system comprising a first communication link allowing a first group of data types to be transmitted between the first unit and the second unit, and a second communication link allowing a second group of data types to be transmitted between the first unit and the second unit. Different properties of the communication links may be used to ensure that certain data, e.g. during pairing of the two devices, can be transmitted in a more controlled way whereas other data can be transmitted in a less controlled way.

The invention discloses a method and apparatus for playing audio. The method comprises the steps: after receiving a command for entering a bluetooth audio mode, starting the bluetooth of a smart television, and determining that the bluetooth of the smart television is a Sink terminal; establishing a bluetooth connection between the Sink terminal and the bluetooth of a first salve unit to be connected, and determining that the bluetooth of the first salve unit is a Source terminal; and after the Sink terminal receives the first audio transmitted from the Source terminal through the bluetooth connection, transmitting the first audio to an audio device of the smart television to enable the audio device to play the first audio. The invention also discloses an apparatus for playing audio. The method and apparatus for playing audio can realize the aim for playing the audio of other mobile terminals through the audio device of a smart television.

A magnetic induction system is disclosed, which has antenna diversity at the transmitter side, but which does not require a bidirectional link to pass information regarding received signal quality back to the transmitter. The system uses a time division multiplexing access (TDMA) arrangement, to transmit the same, or correlated, information with a level of redundancy, from two, or more, antenna to at least a receiver. The or each receiver is configured to determine a received signal quality from the channel received from one antenna, and, in response to inadequate signal quality, to switch to another antenna.A receiver, and a transmitter for such a magnetic induction system are also disclosed, as is an associated method.A non-limiting application of such a system is in binaural hearing aids, in which antenna diversity is preferred at the transmitter because of space limitations.

The invention discloses a master-slave switching method and device for double wireless Bluetooth equipment, equipment and an audio system. The master-slave switching method comprises the following steps: acquiring a switching trigger event of master-slave role switching; generating a master-slave switching request according to the switching trigger event; sending a master-slave switching request to a wireless master device through preset sub-time slots of an established master and slave Bluetooth link at the anchor point position of the slave device end; and when the target anchor point of master-slave switching arrives, executing master-slave role switching with the current wireless master device. The existing communication link is subjected to time division multiplexing, and master-slaveswitching is carried out by utilizing an idle time interval in a standard time slot, so that the phenomena of audio playing delay and jamming of master-slave equipment can be reduced during master-slave switching; position resources of the sub time slots are effectively utilized, communication information transmission quantity is reduced, and bandwidth loss is further reduced.

The embodiment of the invention discloses a Bluetooth power adjusting method and apparatus, applied to the technical field of information processing. In the method embodiment, when a Bluetooth module of the terminal device sends played audio data to a Bluetooth earphone or vehicle Bluetooth through Bluetooth connection, the terminal device judges whether a time interval of a Bluetooth host module to send the audio data in the Bluetooth format is greater than a preset first time value, and if so, a certain functional parameter, namely the transmitting power of the Bluetooth module is adjusted to eliminate one factor causing blockage or noise or interruption of the audio data received from the Bluetooth earphone or the vehicle Bluetooth.

The invention relates to real-time voice wake-up audio equipment, an operation method and device and a storage medium. According to the operation method, a first acoustoelectric transducer with low power consumption is used for detecting a voice input signal in the current environment, when the decibel value of the voice input signal exceeds a preset threshold value, a second acoustoelectric transducer is started for collecting and processing the voice input signal, and whether a processing result comprises a wake-up keyword or not is detected; and if the wake-up keyword is detected, a first Bluetooth communication connection between the audio device and the terminal is established, thereby solving the technical problem of high power consumption caused by the fact that the Bluetooth earphone and the terminal always maintain the classical Bluetooth communication connection in order to realize all-weather voice wake-up in the traditional technology.

A receiving antenna circuit is arranged in a reactive near-field of a modulated magnetic induction signal and forms a narrow band-pass filter. The output of the antenna circuit is not subjected to any frequency translation prior to digitizing, and the signal may nevertheless be digitized with low resolution, which radically reduces the power consumption of the receiving circuits. The reduction in power consumption is of several orders of magnitude, which allows implementation of such receiving circuits in battery-driven devices such as hearing devices without substantially affecting the battery life.

A magnetic field transmitter, especially a transmitter used in conjunction with wireless communications earplugs. In one embodiment, a plate of magnetic material is used behind a coil of electrical conductor to improve the efficiency of the transmitter and to provide electrical and magnetic shielding. The specific dimensions and characteristics of the preferred embodiment of the transmitter described herein provide for efficient wireless communications.

The embodiment of the invention, which is applied to the technical field of information processing, discloses a parameter adjusting method of terminal equipment and terminal equipment. When a aluetooth module of the terminal equipment sends played audio data to a bluetooth headset or bluetooth vehicle-mounted unit by bluetooth connection, the terminal equipment determines whether a time interval for sending audio data by the bluetooth host module to a bluetooth control module in the bluetooth format is larger than a preset time value; if so, a certain functional parameter being a scanning parameter of another wireless communication module sharing a channel with the bluetooth module is adjusted, thereby eliminating a factor causing interruption, noises or breaking of audio data received from the bluetooth headset or bluetooth vehicle-mounted unit.