Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2000-06-09
2001-04-17
Wu, Daniel J. (Department: 2632)
Communications: electrical
Condition responsive indicating system
Specific condition
C340S539230, C340S541000, C340S545600, C340S546000, C340S531000, C340S521000
Reexamination Certificate
active
06218938
ABSTRACT:
BACKGROUND OF THE INVENTION
(a) Technical Field of the Invention
The present invention relates to an anti-burglar and alarming door bell, and in particular, relates to a convenient securing device having anti-burglar and alarming function.
(b) Description of the Prior Art
Conventional security devices employ micro-computer connected with various detecting devices, for instance, a magnetic-spring switch or a infrared detecting device, such that when the door or window of the house is broken-in by burglar, the detecting devices are triggered to produce a signal to the micro-computer, which in turn, produces an alarming indication or sound. At the same time, the outside of the door is mounted with a status indication device having a plurality of LEDs to indicate various status within the house. The drawback of such security device is that the installation of cable or wires is complicated, laborious and expensive. Normally, the user is requested to pay a subscription fee to the security company providing such security system. In these conventional security devices, automatic micro-computer controllers are used to produce an alarming indication, or another control press button is used to produce an alarming ringing sound, the user returning from outside will know that there are burglars in the house. However, the user cannot activate the alarming indication outside the house. Besides, the burglar may tamper with the system within the house such that the security system cannot function normally.
SUMMARY OF THE INVENTION
Accordingly, it is an object of the present invention to provide an anti-burglar alarming door bell comprising a detecting mechanism to detect whether a security device has been illegally broken-in; a first voicing mechanism; a second voicing mechanism producing a sound different from that produced by the first voicing mechanism; an alarming activation mechanism having a press button, a first indication mechanism and a second indication mechanism, the first indication mechanism producing a color different from that produced by the second indication mechanism; a selection switch; a micro-computer and a switching circuit electrically connected with the selection switch, the detecting mechanism, the first and the second voicing mechanism and the alarming activation mechanism, allowing the switching of a common mode and an alarming mode, characterized in that when the switching circuit is at the common mode, the micro-computer causes the first indication mechanism to be lighted and the pressing of the press button causes the first voicing mechanism to produce a sound, and when the switching circuit is at the alarming mode and the detecting mechanism has not detected the security device being illegally broken-in, the micro-computer causes the second indication mechanism to be lighted, and the pressing of the press button causes the first voicing mechanisms to produce a sound, and if the switching circuit is at the alarming mode and the detecting mechanism has detected the security device being illegally broken-in, one of the first indication mechanism and the second indication mechanism produces a flashing and the pressing of the press button causes the second voicing mechanism to produce a sound.
Yet another object of the present invention is to provide an anti-burglar alarming door bell, wherein the alarming activation mechanisms are electrically connected with the switching circuit by a dual-line non-polar method such that the circuit of the door bell can be used to install with the anti-burglar alarming door bell of the present invention.
A further object of the present invention is to provide an anti-burglar alarming door bell, wherein the micro-computer can determine the pressing of the press button by a visiting guest to activate the first voicing mechanism to produce a normal door bell sound.
Yet another object of the present invention is to provide an anti-burglar alarming door bell, wherein if the house owner is away from the house, and the anti-burglar mode is selected, the micro-computer activates the second indication device to produce a light, for instance, a red LED, at the door side.
A further object of the present invention is to provide an anti-burglar alarming door bell, wherein if the house is illegally broken-in by burglar, the micro-computer activates the second voicing mechanism to produce an alarming sound to scare away the burglar, and at the same time, a red LED is produced.
The foregoing objects and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts. Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example.
REFERENCES:
patent: 4683460 (1987-07-01), Nakatsukawa
patent: 4843378 (1989-06-01), Kimura
patent: 5315285 (1994-05-01), Nykerk
patent: 5483224 (1996-01-01), Rankin et al.
patent: 5570083 (1996-10-01), Johnson
A & J
Nguyen Hung
Wu Daniel J.
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