JPH0287865A - Clock device - Google Patents

Abstract

PURPOSE:To realize the immediate transmission of time data and the transmission of time correction data by providing a bidirectional transmission line between a computer system and a clock device, and using a communication protocol. CONSTITUTION:A transmission line between the computer system 1 and the clock device 2 is formed by the bidirectional transmission line 5 which can send data in two directions by providing a transmission line 4 extending from the computer system 1 to the clock device 2 in addition to a conventional transmission line 3 extending from the clock device 2 to the computer system 1. Also, the communication protocol is adopted so that the immediate transmission of time data and the transmission of time correction data can be executed by an instruction of the computer system 1, in addition to the transmission of time data extending from the clock device 2 to the computer system 1. In such a manner, when the computer 1 requests, the time data is obtained immediately, and a time correction, etc., of the clock device being in a place separated from an input terminal, such as a keyboard, etc., can be facilitated.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to a timepiece device in which time adjustment and the like can be performed by a computer system.

B1 Overview of the Invention The clock device of the present invention provides a bidirectional transmission path between a computer system and the clock device, and uses a communication protocol to instantly transmit time data and correct time data based on instructions from the computer system. It is designed to enable transmission.

C1 Conventional technology Conventionally, a clock device has often been used in a computer system, but in the conventional device, the time data transmission direction between the clock device and the computer system is only unidirectional from the clock device to the computer system. It becomes.

Problems to be solved by the D8 invention For this reason, in the conventional device, the computer system immediately
When the time is required, in the worst case there is a waiting time (for example, 1 minute) for one transmission period unique to the clock device, and work such as time adjustment can only be performed on the clock device itself.

The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to enable immediate transmission of time data and transmission of time correction data based on instructions from a computer system. Our purpose is to provide clock devices.

E1 Means for Solving the Problems In order to achieve the above object, the clock device of the present invention provides a bidirectional transmission path between the computer system and the clock device, and uses a communication protocol to transmit commands from the computer system. The present invention is characterized in that instant transmission of time data and transmission of time correction data are possible.

21 Effects Since a bidirectional transmission path is provided between the computer system and the clock device and a communication protocol is adopted, time data can be transmitted from the clock device to the computer according to the prior art.

(2) In addition, instant transmission of time data and transmission of time correction data can be performed by commands from the computer system.

G. Example Examples will be described with reference to the drawings.

1 and 2, the transmission path between the computer system 1 and the clock device 2 is a transmission path 3 from the conventional clock device 2 to the computer system 1, and a transmission path 4 from the computer system 1 to the clock device 2. A bidirectional transmission path 5 is provided that can send data in both directions. Note that 6 in the figure is a photocoupler that connects the transmission line 3.4 and the combination coater system 19 and the clock device 2.

However, by adopting a communication protocol, the transmission of time data from the clock device 2 to the computer system l (the third
In addition to FIG. 3(a)), instant transmission of time data (FIG. 3(b)) and time correction data (FIG. 3(c)) can now be performed by commands from the computer system 1.

H2 Effects of the Invention Since the present invention is configured as described in 1, it produces the following effects.

■Time data can be obtained immediately when the computer requests it.

■A computer system operator can easily adjust the time on a clock device located away from an input terminal such as a keyboard.

[Brief explanation of drawings]

FIG. 1 is an explanatory diagram of the operation of the present invention, FIG. 2 is a circuit diagram of a transmission line, and FIGS. 3(A) to 3(C) are explanatory diagrams of each mode protocol. 1. Computer system, 2. Clock device, 5.
・Bidirectional transmission line. 2 people outside Figure 3 (a)

Claims (1)

[Claims] (1) A bidirectional transmission path is provided between the computer system and the clock device, and a communication protocol is used to enable immediate transmission of time data and transmission of time correction data based on commands from the computer system. clock device.