Bidirectional transmission system
AssigneeRohm Co., Ltd.
InventorsToshihide Komiya, Kenya Nakamura
Life of this patent
Estimating the term…
Abstract
A first receiver receives second serial data transmitted from a second circuit. A second receiver receives first serial data transmitted from a first circuit. An automatic adjustment circuit generates a control signal so as to reduce an error rate of the first serial data received by the second receiver. A second driver drives a differential transmission path according to the second serial data including the control signal. An operation parameter of a first driver is set based on the control signal included in the second serial data.
Claims18
A bidirectional transmission system comprising a first circuit and a second circuit coupled via a differential transmission path,
- wherein the first circuit comprises:
- a first driver coupled to one end of the differential transmission path and structured to drive the differential transmission path according to first serial data;
- a first receiver coupled to the one end of the differential transmission path and structured to receive second serial data transmitted from the second circuit;
- and
- a controller structured to set an operation parameter of the first driver based on a control signal included in the second serial data,
- and wherein the second circuit comprises:
- a second receiver coupled to the other end of the differential transmission path, and structured to receive the first serial data transmitted from the first circuit;
- an automatic adjustment circuit structured to generate the control signal so as to reduce an error rate of the first serial data received by the second receiver;
- and
- a second driver coupled to the other end of the differential transmission path, and structured to drive the differential transmission path according to the second serial data including the control signal.
A serializer circuit coupled to a deserializer circuit via a differential transmission path so as to form a bidirectional transmission system, wherein the deserializer circuit comprises:
- a second receiver coupled to one end of the differential transmission path, and structured to receive first serial data transmitted from the serializer circuit;
- an automatic adjustment circuit structured to generate a control signal so as to reduce an error rate of the first serial data received by the second receiver;
- and
- a second driver coupled to the one end of the differential transmission path, and structured to drive the differential transmission path according to second serial data including the control signal,
- wherein the serializer circuit comprises:
- a first driver coupled to the other end of the differential transmission path, and structured to drive the differential transmission path according to the first serial data;
- a first receiver coupled to the other end of the differential transmission path, and structured to receive the second serial data transmitted from the deserializer circuit;
- and
- a controller structured to set an operation parameter of the first driver based on the control signal included in the second serial data.
A deserializer circuit coupled to a serializer circuit via a differential transmission path so as to form a bidirectional transmission system,
- wherein the serializer circuit comprises:
- a first driver coupled to one end of the differential transmission path, and structured to drive the differential transmission path according to first serial data;
- a first receiver coupled to the one end of the differential transmission path, and structured to receive second serial data transmitted from the deserializer circuit;
- and
- a controller structured to set an operation parameter of the first driver based on a control signal included in the second serial data,
- and wherein the deserializer circuit comprises:
- a second receiver coupled to the other end of the differential transmission path, and structured to receive the first serial data transmitted from the serializer circuit;
- an automatic adjustment circuit structured to generate a control signal so as to reduce an error rate of the first serial data received by the second receiver;
- and
- a second driver coupled to the other end of the differential transmission path, and structured to drive the differential transmission path according to the second serial data including the control signal.
Dependencies are inferred from the claim text.