MINIMUM DELAY VALUE CALCULATING DEVICE, INFORMATION TRANSMITTING DEVICE, MINIMUM DELAY VALUE CALCULATING METHOD, AND PROGRAM STORAGE MEDIUM

摘要

The purpose of the present invention is to appropriately detect propagation delay and the like (minimum delay value) in order to appropriately control a transmission rate of information. Upon input of a measured value of delay that is smaller than a value set as a minimum delay value, a minimum value setting unit (2) updates the set minimum delay value to the measured value of the delay. Delay refers to the time from transmission of information to arrival at the destination thereof, or the round trip time from transmission of information to receipt of reply information from the destination receiving the information by the originator. A timing determination unit (3) determines a review timing for reviewing the set minimum delay value on the basis of the measured value of the delay. A minimum value review unit (4) updates (reviews) the set minimum delay value at the determined review timing. The minimum delay value to be updated is a value calculated using the measured value of the measured delay or a preset initial value.

主权项

1. A minimum delay value calculating device comprising:
a minimum value setting unit that updates a minimum delay value to a measured value of delay that is a time from transmission of information to arrival at a destination of the information or a round trip time from transmission of information to receipt of reply information from a destination receiving the information by an information originator, upon input of the measured value of delay if the measured value of delay is smaller than a value set as the minimum delay value; a timing determination unit that determines a review timing for reviewing the minimum delay value based on the measured value of delay; and a minimum value review unit that updates the minimum delay value to a newly minimum delay value calculated using the measured value of delay or updating the minimum delay value to a preset initial value at the review timing determined by the timing determination unit.