Digital signal transmission method, digital signal transmission system, digital signal transmitting apparatus and recording medium

Abstract

An object of the invention is to arrange so that the digital signal transmission between specific equipments connected with each other by the transmission line of a fixed standard can be performed securely and satisfactorily.When a digital signal destination is caused to receive a fixed digital signal sent out of a digital signal sender, the digital signal destination acquires at the request of the destination from the digital signal sender data on modes in which the digital signal sender is able to send out the digital signal, and a transmission mode of the digital signal is caused to be set by a command based on the acquired mode data from the digital signal destination. Moreover, when a digital signal destination is caused to receive a fixed digital signal sent out of a digital signal sender, a flag is added to the digital signal sent out of the digital signal sender, which indicates that the transmission rate is being adjusted based on the command from the digital signal destination.

Description

[0001]This is a continuation of application Ser. No. 11 / 497,862, filed Aug. 2, 2006, now U.S. Pat. No. RE43,271, which is an application to reissue U.S. Pat. No. 6,788,653.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a digital signal transmission method and a digital signal transmission system as well as a transmitting apparatus forming this system and a recording medium for recording a program applied to this transmission system, which is preferably applicable to a case where audio data is transmitted, for example, according to IEEE (The Institute of Electronics Engineers, Inc.) 1394.[0004]2. Description of the Related Art[0005]An audio equipment related art has been proposed, in which an audio signal is transmitted in the digital form so that the deterioration of sound quality can effectively be avoided.[0006]Specifically, for example, when an audio signal reproduced by the compact disk player is recorded by means of a minidisk d...

AI Technical Summary

Benefits of technology

This patent text describes a method for securely transmitting digital signals between devices. The method involves selecting between different modes for transmitting the signal and ensuring that the chosen mode is secure. This allows for the transmission to occur in a safe manner. Additionally, the destination device can inspect the transmitted flag to allow for fine adjustments to the transmission rate and the like to eliminate any jitters or errors in the signal. The technical effect of this patent is to provide a reliable and secure way to transmit digital signals between devices.

Problems solved by technology

It is undesirable that the transmitted digital signal contains jitters, whereas the complete elimination of the jitters is difficult.

However, if the reproducing unit should receive, e.g. control data from another equipment during the recording operation to stop the reproduction, the recording would be interrupted to result in failure.

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