Cold-light indicating and warning meter

• US 20050083185A1
• Filed: 10/15/2003
• Published: 04/21/2005
• Est. Priority Date: 10/15/2003
• Status: Abandoned Application

• Current Assignee: Ching-Hung Wang
• Original Assignee: Ching-Hung Wang
• Inventors: Wang, Ching-Hung
• Application Number:
  US10/684,482
• Publication Number:
  US 20050083185A1
• Time in Patent Office: Days
• US Class Current: 340/438
• CPC Class Codes: B60K 2370/154 Combined instruments with analogue meters and additional displays
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60K 35/215 characterised by the combination of multiple visual outputs, e.g. combined instruments with analogue meters and additional displays

Abstract

A cold-light indicating and warning meter for car mainly includes a plurality of concentric cold-light rings simultaneously provided on a surface panel of the meter. With a control unit of the meter, readings representing engine speed, car speed, engine temperature, fuel level, etc. are separately shown on the same meter via light and shade of the cold-light rings, so that a driver may have an idea about the conditions of the whole car by observing only one meter.

Claims

1. A cold-light indicating and warning meter, comprising:

a meter top having a surface panel on which a plurality of cold-light rings are radially sequentially arranged; and

a control unit adapted to receive signals representing different conditions of a car that could be expressed in numeral form, and said received signals being operated and converted by said control unit so as to cause said cold-light rings on said meter top to show light and shade and thereby indicate readings representing said different conditions of the car.

2. The cold-light indicating and warning meter as claimed in claim 1, wherein said meter top includes graduations provided along a radially outer side of each said cold-light ring.

3. The cold-light indicating and warning meter as claimed in claim 1, wherein said meter top includes warning scales provided on each of said cold-light rings.

4. The cold-light indicating and warning meter as claimed in claim 1, wherein said control unit includes a central processor;

an induction circuit electrically connected to detectors provided on the car to obtain signals from said detectors;

an input conversion circuit and a signal amplification circuit for processing said signals obtained by said induction circuit and inputting said processed signals to said central processor;

a detection control circuit electrically connected to said input conversion circuit for sending a confirming input signal to notify said central processor;

a frequency output circuit, an oscillating circuit, and a booster circuit for receiving from said central processor signals obtained through operation of said central processor to energize voltage and current required for lighting said cold-light rings;

a control circuit serving as a switch; and

a protective circuit adapted to cause a load circuit to light said cold-light rings under control of said control circuit.

5. The cold-light indicating and warning meter as claimed in claim 4, wherein said signals input to said control unit include at least an engine speed signal, a car speed signal, an engine temperature signal, and a fuel level signal, and wherein said cold-light rings provided on said meter top include at least four rings.