Data display system, data relay device, data relay method, data system, sink device, and data read method
AssigneeKabushiki Kaisha Toshiba
InventorsMasahiko Mawatari, Yutaka Kawada
Life of this patent
Estimating the term…
Abstract
A repeater comprises an EDID memory to store a control data and a memory control unit. The memory control unit is configured to make access to the EDID memory to read the control data therefrom, store the read control data into the EDID memory and, when access is made to the EDID memory by the set-top box, transfer the control data stored in the EDID memory to the set-top box. In this case, the memory control unit outputs an inhibiting signal to a set-top box to inhibit it from making access to the EDID memory until the completion of an operation of storing the control data from the EDID memory in the set-top box into the EDID memory in the repeater.
Claims19
1-27. (canceled)
A data display system comprising:
- a display unit which stores control data representing display attributes and audio attributes and presents input data based on the control data;
- and
- a data relay device configured to make access to the display unit to read the control data therefrom, to store the read control data into a first memory and, when access is made to the first memory by a first source device via an I2C bus line, to inhibit access to read control data stored in the first memory by the first source device until the completion of storing all the read control data from the display unit into the first memory, wherein the data relay device outputs an inhibiting signal to the first source device to inhibit access to the first memory based on an active state or an inactive state of a hot plug line until the completion of storing the read control data.
A data relay device, provided between a display unit, which stores control data at the display unit representing display attributes and audio attributes and presents input data based on the control data, and a first source device, comprising:
- a first memory configured to store the control data;
- and
- a first control unit configured to make access to the display unit to read the control data therefrom, to store the read control data into the first memory and, when access is made to the first memory by the first source device via an I2C bus line, to inhibit access to the read control data stored in the first memory by the first source device until the completion of storing all the control data from the display unit into the first memory, wherein the first control unit outputs an inhibiting signal to the first source device to inhibit access to the first memory based on an active state or an inactive state of a hot plug line until the completion of storing the control data from the display unit into the first memory.
A data relay method for relaying data between a display unit which stores control data representing display attributes and audio attributes and presents input data based on the control data and a first source device, comprising:
- accessing the display unit to read the control data therefrom;
- storing the read control data into a first memory;
- and
- in response to access to the first memory by the first source device via an I2C bus line, inhibiting access to the read control data stored in the first memory by the first source device based on an active state or an inactive state of a hot plug line until the completion of storing all the control data from the display unit into the first memory.
A data system comprising:
- a source device configured to output a digital signal;
- and
- a sink device which comprises a memory configured to store display identification data which represents display attributes and audio attributes, the sink device inhibiting access to the stored display identification data stored in the memory by the source device based on an active state or an inactive state of a hot plug line until the completion of storing all the display identification data, when access is made to the memory by the source device via an I2C bus line.
A sink device comprising:
- a memory configured to store display identification data which represents display attributes and audio attributes;
- and
- a control unit which inputs data from a source device and inhibits access to the display identification data until the completion of storing all the display identification data when access is made to the memory by the source device via an I2C bus line based on an active state or an inactive state of a hot plug line.
Dependencies are inferred from the claim text.