Patent Application
20090015558
1. Field of the Invention
The invention relates to a mouse capable of detecting a pulse, and more particularly to a mouse that employs an infrared sensor for a synchronic detection of user's pulse during operation of the mouse. Meanwhile, the heartbeat state can be displayed by means of a computer.
2. Description of the Related Art
With the rapid development of the computer industry, the computer has become one of the indispensable tools in our daily life. In addition to the keyboard, the mouse is also an indispensable tool for a normal operation of the computer.
The cardiovascular disease has become a more and more serious problem for the modern people since they work in front of the computer for a long time and lack exercise. It would be a good idea if a synchronic detection of the pulse value takes place during the operation of the mouse and the physiological state can be recorded and displayed by means of the computer.
A prior invention discloses a mouse with a light-sensitive unit for receiving the indoor light signal penetrating through the fingers of the human body. Accordingly, the luminance of indoor light is available for the calculation of the current pulse value of the user. However, this detection way requires indoor light signal penetrating through the fingers of the human body to obtain the light signal. Therefore, the operation is impractical. Meanwhile, the accuracy is easily affected by the external light. Accordingly, this conventional mouse requires further improvement.
It is a primary object of the invention to provide a mouse capable of detecting a pulse that does not affect the normal operation of the mouse. Meanwhile, a synchronic detection of the change of the slight amount of blood within the blood vessel caused by the pulsation is achieved during the normal operation of the mouse. Accordingly, the user's pulse value is available by detection.
It is another object of the invention to provide a mouse capable of detecting a pulse that employs an infrared heartbeat sensor to carry out an ergonomic and comfortable detection on the finger of the human body. Therefore, a practical operation is achieved without being affected by external light. Meanwhile, a more accurate measurement is ensured.
In order to achieve the above-mentioned objects, a mouse capable of detecting a pulse includes:
a) a housing having electronic elements therein for fulfilling the functions of the conventional mouse, an infrared pulse sensor being disposed at the internal side of the housing for detecting the change of a slight amount of blood within the blood vessel of a user's thumb that is caused by the pulsation such that the pulse signal of the user is available;
b) a control switch disposed at the internal side of the housing for turning on or off the infrared pulse sensor;
c) a noise canceling circuit and a filtering shaping amplifying circuit coupled to the pulse sensor; and
d) a microprocessor adapted to calculate the number of the heartbeat according to the pulse signal inputted by the filtering shaping amplifying circuit, the heartbeat signal being transmittable from a signal output terminal to a signal input terminal of a computer,
whereby the heartbeat signal is then received by a central processing unit (CPU) of the computer so that the user's physiological state is displayable on a display.
The accomplishment of this and other objects of the invention will become apparent from the following descriptions and its accompanying figures of which:
First of all, referring to
The above-mentioned impulse signal S1 must pass through a noise canceling circuit 13 and a filtering shaping amplifying circuit 14 to be converted into a digital signal S2 made available by a microprocessor 15. The microprocessor 15 can calculate the corresponding frequency according to the digital signal S2 such that the number of the heartbeat in a minute is available. The heartbeat signal will then be transmitted from a signal output terminal 16 to a signal input terminal 22 of a computer 20. At this time, the central processing unit 23 of the computer 20 receives the heartbeat signal. Meanwhile, the user's physiological state represented by a pulse change chart or heartbeat value is displayed on a display 24.
According to the invention, a control switch 12 is disposed at the internal side of the housing 101 for turning on or off the infrared pulse sensor 11. As shown in
As shown in
In addition, a transmission line 18 is coupled at the signal output terminal 16 and the signal input terminal 22 for performing the wire signal transmission between the mouse 10 and the computer 20 (see
Of course, the signal transmission can be a wireless transmission type. As shown in
Based upon the above-mentioned means, the mouse in accordance with the invention can achieve the following effects:
1. The infrared pulse sensor 11 of the invention has only few millimeters and is therefore fitted to the internal side of the housing 101 without affecting the normal functions of the mouse 10. As shown in
2. The pulse detection by approaching the thumb 31 of the hand 30 to the infrared pulse sensor 11 can be achieved in a manner of reflection. Therefore, the detection process won't be interfered or affected by the external light source, thereby achieving a more accurate measurement of the heartbeat value.
Many changes and modifications in the above-described embodiment of the invention can, of course, be carried out without departing from the scope thereof. Accordingly, to promote the progress in science and the useful arts, the invention is disclosed and is intended to be limited only by the scope of the appended claims.
