摘要:
A device (1) is arranged for controlling the sound levels of a group of audio channels including a user selected main channel (MC) and at least one auxiliary channel (AC1; AC2). The audio channels can be rendered simultaneously. The device comprises automatic level adjustment means (12, 13) for adjusting the sound level of the at least one auxiliary channel relative to the main channel. The level adjustment means (12, 13) may be arranged for adapting the respective sound levels to the content or signal characteristics of each associated audio channel.
摘要:
This invention relates to thermal management for removing heat generated by a heat source (110). This is done by a combination of a heat conducting member (120), which is thermally connected to the heat source in one end and to a remotely arranged heat sink (130) in the opposite end, and a synthetic jet actuator (140). The synthetic jet actuator is arranged to provide active cooling directly onto the heat source by generating and directing an air flow towards the heat source. The synthetic jet actuator comprises a resonator cavity housing (150) and an oscillating member (160). The oscillator member is arranged at least partly inside said resonator cavity. The combination of the heat conducting member and the synthetic jet actuator provides a highly efficient cooling.
摘要:
A wireless die (2) comprises an orientation detector (4) for determining an orientation of the die (2) and a transmitter (5) connected to the orientation detector (4) for transmitting die (2) orientation data to the receiver (3). The orientation detector (4) comprises at least two electromechanical detectors (6), the electromechanical detectors (6) being arranged for generating electrical power for the orientation detector (4) and transmitter (5), and for supplying gravity based orientation data.
摘要:
The present invention relates to a method and a device for reducing snore annoyances, wherein a snore sound pattern of a snoring person is determined to predict an upcoming snore sound level and wherein a faked snore sound is played to flatten the resulting snore sound level.
摘要:
The invention relates to a navigational unit 10 and a navigational device 50 for providing suggestions for switching mode of transportation. This may be used e.g. for suggesting car drivers to park at a reasonable distance of their destination such that the last part of their trip can be walked or cycled. By using information on a personal activity goal, performed activity, and possibly desired arrival time, a feasible and tailored suggestion can be given. In this way the time for transport and physical activity may be balanced.
摘要:
A method of maintaining a state in a subject (12) comprises generating a pacing signal (20) at a first frequency, presenting to the subject an output based upon the generated pacing signal, measuring one or more physiological parameters of the subject, detecting that the measured parameter(s) conform to a desired state in the subject, and either removing the presentation to the subject of the output based upon the generated pacing signal, or generating a new pacing signal at a second frequency, and presenting to the subject an output based upon the generated new pacing signal. The method can further comprise, prior to the detecting that the measured parameter(s) conform to a desired state in the subject, adjusting the pacing signal according to feedback from the measured parameter(s). In a preferred embodiment, the method also further comprises detecting that the measured parameter(s) no longer conform to a desired state in the subject, and presenting to the subject an output based upon the original generated pacing signal.
摘要:
An apparatus and method for modifying a psychophysiological state of a subject (150) is presented. The method comprises the steps of: detecting a psychophysiological measure of the subject; processing the detected physiological measure so as to provide a signal indicative of a psychophysiological state of the subject; outputting at least one of an audio stimulus, visual stimulus, haptic stimulus, temperature stimulus and scent stimulus (176, 177) to the subject the output stimulus being derived from an audio-visual data signal provided to the apparatus; and adjusting the output stimulus in real time based on the signal indicative of a psychophysiological state of the subject.
摘要:
A device (30) for adapting an audio input signal (V1n) to a transducer unit (20) comprises: mapping means (10) for mapping input signal components from a first audio frequency range onto a second audio frequency range so as to produce a mapped audio signal (VM), wherein the second audio frequency range is narrower than the first audio frequency range, and wherein the transducer unit (20) has a maximum efficiency at the second audio frequency range, filter means (31) for filtering the input signal (V1n) so as to produce a filtered input signal (V1n′) having a third audio frequency range, and combination means (32) for combining the mapped audio signal (VM) and the filtered input signal (V1n′) so as to produce a transducer signal (VT). The first audio frequency range is preferably contained in the second audio frequency range, while the third audio frequency range may be adjacent the first audio frequency range. The second audio frequency range preferably extends within 5% of the Helmholtz frequency of the transducer unit (20).
摘要:
An illumination device (1) comprising: at least one light emitting device (5); and a suspension structure (2), suspending the at least one light emitting device (5) in a desired position. Further, the illumination device (1) has a transducer (6), adapted to generate pressure waves at a drive frequency; wherein the suspension structure (2) is utilized as a flow guiding structure (7), having a first end adapted to receive the pressure waves from the transducer, and a second end adapted to generate a pulsating net output flow towards the at least one light emitting device (5), thereby cooling the at least one light emitting device (5). By utilizing the suspension structure itself as flow guiding structure cooling can be integrated in a cost efficient way. Further, no additional space is required to accommodate the flow guiding structure.
摘要:
The present invention relates to an audio device comprising a first audio path comprising a loudspeaker for reproducing an audio signal, and a second audio path comprising in series: a band-pass filter (22) for passing frequency components of the audio signal lying between a first frequency and a second frequency, said first frequency being lower than said second frequency, and for attenuating frequency components of the audio signal lower than said first frequency and higher than said second frequency, a detector (23) for detecting an amplitude of the band-pass filtered audio signal, a multiplier (24) for multiplying a periodic signal having a third frequency by the amplitude of the band-pass filtered audio signal, a vibration device (13) for reproducing the multiplied periodic signal, wherein the third frequency is substantially equal to the resonance frequency of the vibration device.