Abstract:
An arrangement of devices which may be worn on the body of a person comprising a first device for transmitting signals to at least one second device via electromagnetic fields or waves, with the first device comprising a transmitter for transmitting such signals and an antenna connected to this transmitter, having a linear or chain-like, but not necessarily straight, arrangement of materials starting from the antenna, which affect the path of the electromagnetic waves or fields transmitted or produced by the antenna, such that at the location of at least one second device a higher receiving field strength of the signals transmitted by the transmitter prevails than without this arrangement of materials.
Abstract:
An induction charging method is provided, with a charging device being equipped with a charging capacitor comprising two opposing electrodes or plates. The device to be charged, a hearing aid or a hearing aid remote control, is introduced between the two electrodes into the electrical field of the capacitor. For energy coupling, the device to be charged is itself equipped with a capacitor which forms induction charges in dependence on the electrical field. The capacitor in the hearing aid or the hearing aid remote control can be manufactured very compactly from foils or coatings so that a significant amount of installation space can be saved for the inductive charging compared to magnetic receiving coils.
Abstract:
The display of status information on a hearing aid is to be improved. To this end, provision is made for the display device (A) to be embodied on the housing of a hearing aid (I) as an electrophoretic display. This is very flexible and thin and can thus be applied in any form to almost any position on the hearing aid. In addition the electrophoretic display (A) only requires energy to change the information displayed. This enables the energy consumption required for a hearing aid display to be greatly reduced.
Abstract:
Structurally simple transmit/receive circuits for hearing devices are to be able to be deployed for higher frequencies as well. It is therefore proposed according to the invention that at least two PIN diodes should be connected in an anti-parallel manner between the receive oscillating circuit and the amplifier connected thereto to protect the amplifier. A capacitance diode can optionally be expanded so that larger component tolerances can be permitted for the circuit.
Abstract:
The invention relates to a water-resistant hearing device, which has the following: At least one first electroacoustic transducer for receiving sound waves and converting said sound waves into electrical signals, an electronic circuit sealed against liquids by coating and/or encapsulation, at least one second electroacoustic transducer converting electrical signals supplied to the circuit into sound waves and an electrical energy source sealed against liquids by means of coating and/or encapsulation. In this way the electroacoustic transducers are made of materials which realize a deformation in an electrical and/or magnetic field and/or an electrical current flow and/or an electrical voltage (and/or vice versa) and are insensitive to liquids, in particular water, salt water and slight acids.
Abstract:
A simple, interference-free digital phase modulator is to be provided. To this end, the phase modulator is provided with a counter for outputting a counter signal on the basis of a predetermined clock signal and a comparator, which receives a current counter state from the counter, in order to record a digital input signal. The comparator compares the input signal with the current counter state on the basis of a predetermined allocation table and resets the counter, if the input signal corresponds to a counter state assigned via the allocation table. A predetermined signal value of the output counter signal is herewith phase-modulated as a function of the input signal. As only one phase position is generated with the circuit at any point in time, interferences, which are produced by the digital phase modulator itself, are significantly less.
Abstract:
A method for programming a hearing device is described, in which audio data and programming data is transmitted from a programming device to the hearing device, with the audio data and the programming data being converted into data packets and transmitted via a common channel of a digital radio connection from the programming device to the hearing device.
Abstract:
In a hearing aid system comprising two hearing aids between which wireless signal transmission is provided. The hearing aids are automatically switched on and off. To this end, a field strength or value of an electromagnetic signal received by a hearing aid that is transmitted from the respective other hearing aid may be determined. The determined value is compared with a threshold value, the relevant hearing aid being switched off (sleep mode), as long as the field strength is greater than the threshold value and the hearing aid being switched on as long as the measured field strength is lower than the threshold value.
Abstract:
There is described an amplifier for a radio frequency signal for transmitting a transmit signal to an otological apparatus. The amplifier comprises at least one power transistor for switching an output signal. A breaker gap of the power transistor is actively connected to a network such that a power loss converted in the power transistor is at least partially reduced during a switchover into a switched-on state and/or at least during a switchover into a switched-off state. The breaker gap of the at least one transistor is at least indirectly connected in series to a power supply source by way of a choke coil. The amplifier comprises a transmit coil as an output load, with the transmit coil comprising an inductor and being actively connected to the power transistor. The transmit coil is coupled to the choke coil in a transformer-like manner, with the choke coil thus being able to transmit an output power to the transmit coil. The transmit coil can generate a transmit signal from the output power.
Abstract:
The aim is to be able to determine the spatial structure of an ear canal in a simple and reliable fashion. To this end, it is proposed to produce a hologram of the ear canal, by inserting a holography unit at least partially into the ear canal. The data for the shape of a housing shell or an otoplastic can then be obtained from the resulting hologram for automatic manufacturing methods.