JPS62155388U - - Google Patents

Description

[Brief explanation of the drawing]

The drawings show one embodiment of this invention; FIG. 1 is an external view of an electronic wristwatch with a stopwatch device to which this invention is applied; FIG. 2 is a configuration diagram of the liquid crystal display panel 1 shown in FIG. 1; FIG. is a basic block circuit diagram of this electronic wristwatch, FIG. 4 is a configuration diagram of the RAM 20 shown in FIG. 3, FIG. 5 is a general flowchart showing an overview of the overall operation, and FIG. A flowchart showing the specific details of the stopwatch processing shown in FIG. 7 is for switch S2,
Figure 8 shows switch S3, Figure 9 shows switch S4,
Fig. 10 is a flowchart showing the operation in stop watch mode accompanying the operation of switch S5, Fig. 11 is a diagram of the overall display state that changes as the switch is operated, and Fig. 12 is a flowchart showing the operation in stop watch mode in accordance with the operation of switch S5. Display state diagram: FIG. 13 is a display state diagram in the current data recall mode. 1...Liquid crystal display panel, 11...Oscillation circuit, 1
5...Operation decoder, 17...ROM
, 20...RAM, 21...display section, 22...calculation section.

Claims (1)

[Scope of utility model registration request] A time measuring means for obtaining measured time information by counting a reference clock signal, a target time setting means for storing a preset target time, and the measured time information obtained by the time measuring means and the target time setting means. 1. A stopwatch device comprising: a calculation means for determining a time difference from a target time stored in the computer; and a display means for displaying the time difference obtained by the calculation means.