Wave generation apparatus

• US 6,527,696 B1
• Filed: 10/24/2000
• Issued: 03/04/2003
• Est. Priority Date: 03/31/2000
• Status: Expired due to Fees

• Current Assignee: Ho Cheol Kim, MEC Company Ltd.
• Original Assignee: Ho Cheol Kim, MEC Company Ltd.
• Inventors: Kim, Myung Sun
• Primary Examiner(s): Hindenburg, Max F.
• Assistant Examiner(s): Cadugan, Joseph A.
• Application Number:
  US09/694,278
• Time in Patent Office: 861 Days
• Field of Search: 600/9-15, 600/26-28, 600/544-545, 128/897-898
• US Class Current: 600/13
• CPC Class Codes: A61N 2/02 using magnetic fields produced by coils, including single turn loops or electromagnets A61N2/12 takes precedence

Abstract

An alpha wave generation apparatus has a voltage controller including a first resistor connected in parallel to an adapter jack and a battery, a converter for supplying power to a microcomputer, a first coil and a diode connected in series between the first resistor and an input terminal of the converter, a second resistor for maintaining an input voltage to the microcomputer constant in level, and a capacitor being charged with an input voltage to the converter or discharging it. The alpha wave generation apparatus generates alpha waves of 4 Hz, 8 Hz, and 10 Hz which, for example, may be used to activate cerebral cells.

Claims

1. A wave generation apparatus comprising:

voltage control means including;

a first resistor connected in parallel to an adapter jack and a battery,

a converter for supplying power to a microcomputer,

a first coil and a first diode connected in series between said first resistor and an input terminal of said converter,

a second resistor for maintaining an input voltage to said microcomputer constant in level, and

a first capacitor being charged with an input voltage to said converter or discharging it;

function control means including an ON/OFF switch, a grade DOWN switch, a grade UP switch and a function switch, the function control means including a function controller circuit including a switch for allowing a user to select one of a plurality of frequencies to cause a particular cerebrum response, said plurality of frequencies comprising 4 Hz for inducing a rest, 8 Hz for increasing concentration, and 10 Hz for improving a studying capability;

a voltage controller circuit for selecting an input voltage in response to said switch;

a frequency oscillator connected to said microcomputer for generating said selected frequency corresponding to said switch;

display means for providing a visual indication of the present operation state to the user;

a microcomputer connected to said function controller circuit and said voltage controller circuit, said microcomputer for controlling said wave generation apparatus and performing an analog/digital conversion function, a pulse width modulation function and a digital/analog conversion function;

frequency generation means including;

frequency oscillation means for performing a frequency oscillating operation in response to a control signal from said microcomputer, and

reset means for resetting the system when an abnormal state occurs in the system, said reset means including a plurality of third resistors, a second capacitor and a first transistor; and

output means including;

amplification means for amplifying an output frequency signal from said frequency generation means and outputting the amplified signal through a second coil, and

analog output means for outputting a control signal to said amplification means in response to an output signal from said function control means, said analog output means including;

a second transistor turned on in response to a function selected by said function switch, and

a transformer having a primary coil for receiving an output voltage from said voltage control means via a bias resistor when said second transistor is turned on and a secondary coil for inducing a voltage at a predetermined turn ratio relative to said primary coil,

said amplification means including a third transistor for receiving the voltage induced in said secondary coil of said transformer in said analog output means via a second diode and outputting a frequency signal corresponding to the received voltage to said second coil in response to said control signal from said analog output means.

2. The wave generation apparatus as set forth in claim 1, wherein said frequency oscillation means includes a crystal and a pair of coupling capacitors.

3. The wave generation apparatus as set forth in claim 1, wherein said analog output means includes:

a plurality of fourth resistors for dividing an output voltage from said microcomputer at a predetermined ratio;

a bypass capacitor for bypassing the voltage divided by said fourth resistors; and

a fourth transistor turned on in response to an output voltage from said bypass capacitor to turn on said third transistor in said amplification means.

4. The wave generation apparatus as set forth in claim 3, wherein said fourth resistors are adapted to perform a voltage dividing function in response to a grade mode selected by said grade DOWN and UP switches.

5. The wave generation apparatus as set forth in claim 1, wherein any one of said amplification means and analog output means in said output means is adapted to provide an output frequency in response to an output signal from said microcomputer.

6. The wave generation apparatus as recited in claim 1, further comprising an amplification circuit for amplifying said individual frequencies.

7. The wave generation apparatus as recited in claim 1, further comprising a display connected to said microcomputer for displaying said selected frequency generated by said frequency oscillator.