DE10222439A1 - Microwave hearing device uses modulated microwave pulses for providing induced sound warning directly within head of deaf person - Google Patents

Microwave hearing device uses modulated microwave pulses for providing induced sound warning directly within head of deaf person

Info

Publication number
DE10222439A1
DE10222439A1 DE2002122439 DE10222439A DE10222439A1 DE 10222439 A1 DE10222439 A1 DE 10222439A1 DE 2002122439 DE2002122439 DE 2002122439 DE 10222439 A DE10222439 A DE 10222439A DE 10222439 A1 DE10222439 A1 DE 10222439A1
Authority
DE
Germany
Prior art keywords
frequency
voltage
audio signal
range
pulse generator
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
DE2002122439
Other languages
German (de)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LEYSER ROLAND
Original Assignee
LEYSER ROLAND
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LEYSER ROLAND filed Critical LEYSER ROLAND
Priority to DE2002122439 priority Critical patent/DE10222439A1/en
Publication of DE10222439A1 publication Critical patent/DE10222439A1/en
Withdrawn legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/70Adaptation of deaf aid to hearing loss, e.g. initial electronic fitting
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/02Radiation therapy using microwaves

Abstract

Sound perception - even without the involvement of the external and internal hearing organs - is induced directly in the head (hearing center) of a person if the head is irradiated with microwaves in the range from 100 MHz to 10 GHz, which are pulsed in a certain way. DOLLAR A This pulsed microwave radiation consists of frequency-modulated bursts. Each burst consists of 10 to 20 equally spaced pulses that are close together. DOLLAR A The burst width is between 500 ns and 100 microseconds. DOLLAR A The pulse width is in the range from 10 ns to 1 microsecond. The bursts are frequency modulated with the audio signal voltage. DOLLAR A In this way, as yet unexplored neuronal processes, the sensation of an understandable auditory impression is achieved in the person whose head is being irradiated.

Description

  • State of the art
  • So far there have been rehabilitation measures for hearing impairments such as conductive and inner ear hearing loss
    • a) external electronic hearing aids for sound amplification and delivery in the external auditory canal and in
    • b) partially and fully implantable electronic hearing devices, which feed the amplified and preprocessed microphone signals via electronic / mechanical transducers to the damaged middle ear or inner ear.
  • Further developed devices according to b) can be used for people with severe hearing loss or even deafness of the inner ear can be combined with a cochlear graft by the electrical signals of the speech processor supplied to the cochlear stimulation electrode become. (Patents DE 196 38 158 A1; DE 197 52 447, DE 199 15 846 C1, DE 42 21 866 C2, DE 696 14 103 T2, US 4729366, US 4850962, US 5859916)
  • However, these measures are only promising if the behind the Inner ear nerve pathways are intact; otherwise a so-called auditory brainstem implant.
  • The insertion of a cochlear implant means an approximately 3-hour ear operation with all its risks. The operational risks in an auditory brainstem The implant is at least the same size.
  • After the operation, an elaborate hearing / speech training must take place, each is adapted to the age of the patient.
  • After this basic therapy has expired, lifelong follow-up care is required.
  • The invention relates to a hearing device which is characterized in that that a sound perception without the participation of the hearing organs directly in the head of a People can be effected.
  • This is achieved by using pulsed high frequency electromagnetic energy an antenna is radiated through the air to a person's head. The frequency of these radio frequency energy pulse packets (bursts) is determined by the Peak voltages of the audio signal. The audio signals can be from any Audio signal sources come like microphones, CD players, tape recorders and receivers; they are perceived regardless of the hearing of the Person.
  • drawings
  • Fig. 1 overview - block diagram.
  • Fig. 2 diagram of an audio signal voltage curve, which corresponds to the sound information that the receiver (person) should perceive. The signal voltage V is plotted against time with an additional marking of the standard voltage V. STD.
  • FIG. 3 shows a diagram with the same time coordinate as FIG. 2, which shows bursts which are frequency-modulated with the audio signal voltage from FIG. 2
  • FIG. 4 shows on an enlarged time coordinate that each vertical line from FIG. 3 represents a burst of pulses
  • Fig. 5 shows on a further enlarged time coordinate a single pulse.
  • Detailed description of the invention
  • Since microwaves can damage human tissue, any irradiated must Energy can be carefully regulated in terms of their intensity to within the Safety limits for microwave radiation remain.
  • Referring to FIG. 1, a microphone or other audio source (10) delivers a signal voltage cable (11) to a frequency-modulatable pulse generator (12) and via a branch line (13) to a comparator (14). The comparator ( 14 ) also receives a signal from a standard voltage source ( 16 ). If the voltage peak from the audio source ( 10 ) falls below the standard voltage, the comparator ( 16 ) delivers a signal to the frequency-modulable pulse generator ( 12 ) via the cable ( 17 ) in order to switch it off. This avoids the generation of false signals. The output of the frequency mod. Pulse generator ( 12 ) is led via the cable ( 18 ) to the input of a microwave generator ( 19 ), the output of which is directed to the antenna ( 22 ) which is directed towards the head of a person ( 23 ). In this way, the person ( 23 ) is irradiated with microwaves consisting of short bursts.
  • The microwave generator ( 19 ) operates at a constant frequency of currently preferably 1000 MHz. The microwave energy is preferably pulsed with pulse widths from 10 ns to 1 microsecond. For each setting of the frequency mod. Pulse generator ( 12 ), this pulse width is constant. The pulses are arranged in bursts. The timing of the bursts is controlled by the instantaneous level of the audio signal voltage above the standard voltage line.
  • In addition, the burst distances correspond to a fluctuating Frequency range from 1 to 100 kHz.
  • These non-uniform burst distances are generated in the frequency-modulable pulse generator ( 12 ).
  • FIG. 2 shows an audio signal voltage ( 27 ) generated by an audio source ( 10 ), the horizontal axis representing time and the vertical axis representing signal voltage. For illustrative purposes, the signal voltage ( 27 ) is shown in such a way that two voltage peaks ( 28 and 29 ) of different heights are shown at the top. In addition, the line of the standard DC voltage ( 31 ) is shown, which is generated by the standard voltage source ( 16 ). This standard voltage is preferably selected so that it is approximately 50% of the maximum audio signal voltage ( 28 ).
  • The comparator ( 14 ) of Fig. 1 switches the frequency mod. Pulse generator ( 12 ) only when the positive signal of the audio wave ( 27 ) exceeds the standard voltage ( 31 ). The negative parts are not used.
  • Fig. 3 shows 2 groups of bursts of microwave energy, which are radiated from the antenna ( 22 ) to the head of the person ( 23 ).
  • Fig. 3 has a horizontal time axis (identical to the time axis of Fig. 2) and a vertical axis, which in this case represents the power of the microwave pulses from the generator ( 19 ). On the left side of FIG. 3, several microwave bursts ( 32 ) are shown, which occur on the time axis as soon as the audio signal voltage ( 27 ) exceeds the standard voltage ( 33 ) and then disappear when the audio signal voltage returns to the standard voltage falls below ( 34 ).
  • It should be noted that the bursts ( 32 ) are not equally spaced and that they are narrower at higher audio signal voltages and wider when the audio voltage signal comes in the direction of points ( 33 ) and ( 34 ). This corresponds to the frequency modulation effect with the pulse generator. ( 12 ).
  • Fig. 3 shows on the right side several microwave bursts ( 36 ), which are fewer in number and run for a shorter time than the bursts ( 32 ). This corresponds to a smaller audio signal voltage on the time axis of FIG. 2 in the range from point ( 37 ) to point. ( 38 ). These bursts ( 36 ) are also frequency modulated analogously to the bursts ( 32 ).
  • Fig. 4 shows the fact that a single burst, shown in Fig. 3 as a straight line ( 32 ) or ( 36 ), consists of 10 to 20 separate microwave pulses. The duration of the burst is between 500 ns and 100 microseconds with an optimum of 2 microseconds. The duration of each pulse within the burst is 10 ns to 1 microsecond, with a duration of 100 ns being preferred.
  • Fig. 4 takes out a pulse which is shown again in Fig. 5. The time sequence of the pulses within the bursts is uniform. The time intervals between the pulses can vary from 5 ns to 10 microseconds.
  • Figure 3 shows that the concentration of the bursts ( 32 ) versus the peak ( 28 ) of Figure 2 can be expressed as a repetition frequency. As a setting on the frequency mod. Pulse generator ( 12 ) a maximum repetition frequency in the range from 25 KHz to 100 KHz is selected. This area is intentionally kept narrow to keep the amount of microwave heating small.
  • The larger spacing of the bursts ( 32 ) can also be expressed by a repetition frequency. The minimum repetition frequency is preferably 1 KHz.
  • The goal is again to reduce the transfer of heat.
  • operation
  • Referring to Fig. 1, the sound information to be perceived by the person ( 23 ) is input to the audio source ( 10 ), which can be a microphone, a tape player for music, a CD player, etc. This audio signal becomes the frequency mod. Pulse generator ( 12 ) and transmitted to the comparator ( 14 ). The comparator compares the positive components of the audio signal with the standard voltage of the standard voltage source ( 16 ) and if the voltage of the audio signal exceeds the standard voltage, the frequenmod.
  • Pulse generator set in motion by the cable ( 17 ) connecting the comparator and pulse generator.
  • The frequency mod. Pulse generator ( 12 ) then sends a plurality of pulses to the microwave generator ( 19 ) at each audio signal peak that is above the standard voltage.
  • This is shown graphically in Fig. 2- Fig. 5: The audio signal ( 27 ) of Fig. 2 exceeds the standard voltage ( 31 ) at point ( 33 ), with the pulse generator ( 12 ) starting to burst signals ( 32 ) with the lowest frequency of approx. 1 kHz. As time progresses, the signal voltage rises above the standard voltage after point ( 33 ) and the pulse generator ( 12 ) responds by narrowing the bursts until the peak density ( 28 ) reaches the maximum density of the burst signals ( 32 ), for example at a frequency of 50 kHz.
  • The duration of each burst ( 40 ) is also determined by a fixed frequency mod. Pulse generator controls z. B. the duration can be 100 ns. The frequency modulated burst signals are supplied from the pulse generator ( 12 ) to the microwave generator ( 19 ) as an interrupted direct current and the microwave generator is turned on in response from each burst ( 40 ). Its output is led via coaxial cable ( 21 ) to a parabolic antenna ( 22 ) in order to radiate the microwave pulses to the person's head ( 23 ).
  • These microwaves penetrate the brain sufficiently far that the electrical ones Activity inside the brain causes the sensation of an auditory impression. If the experimental parameters are adapted to the particular individual, it takes understandable hearing impressions true; this regardless of its external hearing organs.
  • Current preferred settings
  • As mentioned before, I prefer about 50% of the audio peak voltage as the standard voltage ( 31 ). This not only helps to lower the person's heating, but also lowers the appearance of spurious audio signals. This 50% is not critical; the useful range is from 25% to 85% of the peak audio voltage.
  • The minimum burst repetition frequency is preferably 1 KHz and the maximum burst repetition frequency is in the range from 25 KHz to 100 KHz, with the lower frequencies leading to less heating. The duration of each individual pulse of microwave radiation is in the range of 10 ns to 1 microsecond, as shown in Fig. 5, with the shorter pulse widths producing less heat.
  • Control of the energy output
  • The energy output is controlled by controlling the strength of the pulse rate modulation controlled. This leads to an impulse factor of 0.005, the ratio:
  • Duty cycle of the transmitter in seconds / second. The level of a single pulse can be between 500 mW and 5 W and lead with a pulse factor of 0.005 these pulses to an average antenna power of 2.5 mW respectively. 25 mW. However, these values are further reduced by the fact that Pulse frequency modulation is set so that a 0 input also a 0 output supplies.

Claims (7)

1. Device for generating sound perception in humans, consisting of:
a) an audio voltage source that supplies a positive electrical audio signal voltage
b) a frequency-modulated pulse generator which is connected to the audio signal source and which delivers frequency-modulated burst signals
c) a constant voltage source that provides a standard voltage that is in the range of 25% to 85% of the audio peak voltage.
d) a comparator connected to the audio signal source and the constant voltage source, which compares the instantaneous voltage of the audio signals with the voltage standard.
e) a connection of the comparator to the frequency-modulated pulse generator in order to activate the pulse generator as soon as the audio signal voltage exceeds the standard voltage.
f) a microwave generator which generates microwaves in the range from 100 MHz to 10000 MHz and which is connected to the frequency-modulable pulse generator, so that microwaves are only generated when it receives pulses from the pulse generator.
g) an antenna connected to the microwave generator, which radiates to the head of a human being in order to generate the sound impressions of the audio source.
2. Device as listed in claim 1, wherein the frequency Generation range for burst signals is in the range from 1 KHz to 100 KHz and the for the pulses within the bursts is in the range from 100 KHz to 20 MHz.
3. Device as listed in claim 1, wherein the duration of a single pulse of the frequency-modulated pulse generator in the range from 10 ns to 1 Microsecond.
4. Device as listed in claim 1, wherein the voltage standard is approximately 40% of the peak voltage of the audio signal.
5. Device as listed in claim 1, wherein the antenna is of a type which emits the microwaves in the room to the head of a human being.
6. Device for generating hearing perception in humans, consisting of:
a) a frequency generator that generates an electromagnetic carrier frequency in the range of 100 MHz to 10000 MHz
b) a frequency-modulated pulse generator which is connected to the aforementioned microwave generator in order to pulse the carrier frequency with pulses which have a width in the range from 10 ns to 1 microsecond, with a minimum interval between the pulses of approximately 25 ns.
c) an audio signal generator connected to the frequency-modulable pulse generator,
d) a transmission antenna connected to the microwave generator to radiate the modulated carrier frequency to the human head.
7. Device as listed in claim 6, wherein the modulator of frequency-modulated pulse generator the density of the bursts during a positive audio signal varies as a function of audio signal voltage.
DE2002122439 2002-05-22 2002-05-22 Microwave hearing device uses modulated microwave pulses for providing induced sound warning directly within head of deaf person Withdrawn DE10222439A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2002122439 DE10222439A1 (en) 2002-05-22 2002-05-22 Microwave hearing device uses modulated microwave pulses for providing induced sound warning directly within head of deaf person

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2002122439 DE10222439A1 (en) 2002-05-22 2002-05-22 Microwave hearing device uses modulated microwave pulses for providing induced sound warning directly within head of deaf person

Publications (1)

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DE10222439A1 true DE10222439A1 (en) 2003-12-11

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2526478C2 (en) * 2012-11-21 2014-08-20 Григорий Николаевич Щербаков Method and device of microwave electromagnetic impact at trespasser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2526478C2 (en) * 2012-11-21 2014-08-20 Григорий Николаевич Щербаков Method and device of microwave electromagnetic impact at trespasser

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