Data transmission apparatus, system and method, and recording medium
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Apr 6, 2004
Grant Date -
N/A
app pub date -
Jul 29, 1999
filing date -
Jul 31, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In data transmission between a host device and a target device connected by a serial bus, when commands and data use the same register area, and only the transmission result of the data is to be returned, any command other than a data transmission command cannot be transmitted for a certain period because the receiving-side register becomes full. In this invention, when a response to a data transmission command from the host device is to be returned from the target device, the host device is notified of the situation of the data receiving buffer. The host device transmits a DUMMY command to the target device in accordance with the free buffer situation and transmits another command to the target device in accordance with the response from the target device. The target device sends a data retransmission request to the host device in accordance with the free buffer situation. The host device retransmits a data transmission command in accordance with the retransmission request and transmits another command to the target device in accordance with the response from the target device.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully