Movable anti-theft device for mobile telephones

• US 6,628,200 B1
• Filed: 09/12/2002
• Issued: 09/30/2003
• Est. Priority Date: 09/12/2002
• Status: Expired due to Fees

• Current Assignee: Chi-Hung Lin
• Original Assignee: Chi-Hung Lin
• Inventors: Lin, Chi-Hung
• Primary Examiner(s): Wu, Daniel J.
• Assistant Examiner(s): Nguyen, Hung
• Application Number:
  US10/241,689
• Time in Patent Office: 383 Days
• Field of Search: 340/568.1, 340/426, 340/540, 340/541, 340/539.16, 455/425, 455/67.1
• US Class Current: 340/568.1
• CPC Class Codes: H04L 12/2854 Wide area networks, e.g. public data networks

Abstract

A movable anti-theft device for mobile telephones includes an induction system, an automatic dial system, a mobile telephone transmitting-and-receiving system, an alarm, an automatic charge system and a power delay connection system. The induction system senses unusual signals and sends them to the automatic dial system and the alarm system. The automatic dial system is able to automatically dial a preset telephone number to notify a related person. The mobile telephone transmitting-and-receiving system is able to transmit or receive signals. The alarm system is able to light up a warning light and give out sound. The automatic charge system is able to make up a self-supplying power through voltage drop and electricity storage. The power delay connection system is able to delay for a period of time and then convey power to all the foresaid systems.

Claims

1. A movable anti-theft device for mobile telephones comprising:

an induction system provided on an expansion plate, said induction system consisting of a temperature sensor, a micro-switch, a mercury switch and an infra-red ray human body sensor, said expansion plate having a portion reserved for additionally installing other sensors thereon;

an automatic dial system composed of a shift circuit, an analog switch and bus terminals connected with one another, said shift circuit able to automatically start said analog switch in sequence after receiving signals coming from said induction system, said analog switch orderly completing connection and sending relatively connected signals to said bus terminals, the wires of said bus terminals sending out said relatively connected signals, dialing manually the keys of said mobile telephone orderly completing a purpose of dialing automatically;

a mobile telephone transmitting-and-receiving system provided with a reception circuit and a transmission circuit connected with each other, said reception circuit having a reception terminal for receiving signals, said transmission circuit having a transmission terminal for transmitting signals;

an alarm system provided with a delay circuit, an alarm drive circuit, an alarm and a manual switch connected together, the operation of said alarm system divided into automatically switching and manually switching, said alarm system starting and sending out signals after a delay of a period of time by said delay circuit by automatically switching, said signals actuating said alarm drive circuit to start said alarm, said manual switch started manually to send out signals after said alarm system starts by manually switching, said signals actuating said alarm drive circuit to start said alarm;

an automatically charge system consisting of a voltage drop circuit and a battery connected with each other, said voltage drop circuit carrying out voltage drop and charging said battery after supplied with AC or DC power, permitting said battery to maintain adequate electric power;

a power delay connection system composed of a delay circuit and a relay supply circuit connected with each other, said delay circuit started manually to send out signals to said relay supply circuit to complete power supply after delaying for a period of time; and

,

said induction system able to sense unusual signals and send them to said automatic dial system and said alarm system, said automatic dial system able to automatically dial a preset telephone number to notify a related person, said mobile telephone transmitting-receiving system able to transmit or receive signals, said alarm system able to light up a warning light and give out sound at the same time to frighten a burglar, said automatic charge system able to make up a self-supplying power through voltage drop and electricity storage, said power delay connection system able to covey power to all the above-mentioned systems after delaying for a period of time, said movable anti-theft device able to transmit or receive signals without distance restriction and channel interference.

2. The movable anti-theft device for mobile telephones as claimed in claim 1, wherein all said systems can be installed in a mobile telephone, in a wired telephone or in a long-distance wireless telephone.