USB device, data transfer system and data transfer method
First Claim
Patent Images
1. A USB device comprising:
- a first processing unit configured to, when a predetermined error is included in a first header of a first packet received from a host apparatus, discard the first header and transmit a first payload of the first packet to a subsequent stage; and
a second processing unit configured to discard the first payload received from the first processing unit and transmit a first packet resending request to the host apparatus.
1 Assignment
0 Petitions
Accused Products
Abstract
To prevent an increase in a circuit configuration that is used for a case in which when a header is incorrect under a specific condition, a correctly-received payload is kept and only the header is resent. A USB device according to the present disclosure includes a first processing unit configured to, when a predetermined error is included in a first header of a first packet received from a host apparatus, discard the first header and transmit a first payload of the first packet to a subsequent stage, and a second processing unit configured to discard the first payload received from the first processing unit and transmit a first packet resending request to the host apparatus.
4 Citations
10 Claims
-
1. A USB device comprising:
-
a first processing unit configured to, when a predetermined error is included in a first header of a first packet received from a host apparatus, discard the first header and transmit a first payload of the first packet to a subsequent stage; and a second processing unit configured to discard the first payload received from the first processing unit and transmit a first packet resending request to the host apparatus. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A data transfer system comprising:
-
a host apparatus configured to transmit a first packet; and a USB device configured to receive the first packet from the host apparatus, wherein the USB device comprises; a first processing unit configured to, when a predetermined error is included in a first header of the first packet, discard the first header and transmit a first payload of the first packet to a subsequent stage; and a second processing unit configured to discard the first payload received from the first processing unit and transmit a first packet resending request to the host apparatus. - View Dependent Claims (9)
-
-
10. A data transfer method for transferring data from a host apparatus to a USB device, comprising:
-
discarding, in a first processing unit of the USB device, when a predetermined error is included in a first header of a first packet received from the host apparatus, the first header and transmitting a first payload of the first packet to a subsequent stage; and discarding, in a second processing unit which is the subsequent stage, the first payload received from the first processing unit and transmitting a first packet resending request to the host apparatus.
-
Specification