Signaling for transitions between modes of data transmission
First Claim
Patent Images
1. A method comprising:
- encrypting an uncompressed data stream for transmission;
transmitting the encrypted data stream over a data link from a first device to a second device, the data stream operating in a first mode, the first mode including transmission of a first type of video data;
determining that the data stream is to be changed from the first mode to a second mode, the second mode including transmission of a second type of video data, wherein data in the first mode is incompatible with data in the second mode; and
while the data stream is being transmitted in the first mode via the data link, transmitting a message from the first device to the second device over a single-wire control link between the first device and the second device, the message indicating that the first device will change the data stream from the first mode to the second mode, the message being sent via the single-wire control link prior to the change to the second mode.
5 Assignments
0 Petitions
Accused Products
Abstract
Embodiments of the invention are generally directed to signaling for transitions between modes of data transmission. A embodiment of a method includes transmitting a data stream over a data link from a first device to a second device, the data stream operating in a first mode; determining that the data stream is to be changed from the first mode to a second mode; and transmitting a message from the first device to the receiver over a control link, the message indicating that the first device will change the data stream from the first mode to the second mode, the message being sent prior to the change to the second mode.
18 Citations
23 Claims
-
1. A method comprising:
-
encrypting an uncompressed data stream for transmission; transmitting the encrypted data stream over a data link from a first device to a second device, the data stream operating in a first mode, the first mode including transmission of a first type of video data; determining that the data stream is to be changed from the first mode to a second mode, the second mode including transmission of a second type of video data, wherein data in the first mode is incompatible with data in the second mode; and while the data stream is being transmitted in the first mode via the data link, transmitting a message from the first device to the second device over a single-wire control link between the first device and the second device, the message indicating that the first device will change the data stream from the first mode to the second mode, the message being sent via the single-wire control link prior to the change to the second mode. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A method comprising:
-
receiving an encrypted and uncompressed data stream over a data link from a first device at a second device in a first mode, the first mode including a first type of video data; during the reception of the data stream in the first mode via the data link, receiving a message over a single-wire control link from the first device at the second device, the message indicating that the first device will change the data stream from the first mode to a second mode, the message being received prior to the change to the second mode, the second mode including a second type of video data, wherein the first type of video data and the second type of video data are incompatible; taking action to prepare for the transition of the data stream from the first mode to the second mode; and receiving the data stream in the second mode at the second device. - View Dependent Claims (8, 9, 10, 11, 12, 13)
-
-
14. A transmitting device comprising:
-
a controller to control transmission of video data from the transmitting device; an encryption engine to encrypt the video data in an uncompressed data stream; a transmitter to transmit the encrypted data stream to a receiving device; a data link to the receiving device, the transmitter to transmit the data stream in a plurality of modes on the data link, the plurality of modes including a first mode for transmission of a first type of video data and a second mode for transmission of a second type of video data, the data link including a first data line and a second data line; and a single-wire control link to the receiving device, the controller to direct a message to the receiving device over the single-wire control link during a transmission of the first type of video data in the first mode to notify the receiving device that the transmitting device will change transmission of the data stream from transmission of the first type of video data in the first mode to transmission of the second type of video data in the second mode, the controller to direct the transmitter to send the second type of video data in the second mode; wherein the transmitter is to transmit the message to the receiving device prior to the transmitting device switching to the second mode. - View Dependent Claims (15)
-
-
16. A device comprising:
-
a controller to control handling of data including video data received from a transmitting device; a receiver to receive an encrypted, uncompressed data stream including video data from the transmitting device; a decryption engine (320) to decrypt the data stream received from the transmitting device; a data link from the transmitting device, the device to receive the data stream in a plurality of modes on the data link, the plurality of modes including a first mode for a first type of video data and a second mode for a second type of video data, wherein the first type of video data and the second type of video data are not compatible, the data link including a first data line and a second data line; and a single-wire control link with the transmitting device, the device to receive a command signal from the transmitting device over the control link during reception of the data stream in the first mode via the data link to notify the device that the transmitting device will change transmission of the data stream from the first mode to the second mode, the controller to direct action to prepare for data in the second mode; wherein the transmitter is to transmit the command signal to the receiving device prior to the transmitting device switching to the second mode. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23)
-
Specification