Patent application number | Description | Published |
20090177818 | DISCOVERY OF ELECTRONIC DEVICES UTILIZING A CONTROL BUS - Discovery of electronic devices utilizing a control bus. An embodiment of a method includes connecting a receiving device to a cable, where the cable includes a control bus. If the receiving device is in a disconnect state and a signal from a transmitting device is detected on the control bus, the device is transferred to a state for a first type of transmitting device. If the receiving device is in either the disconnect state or the state for the first type of transmitting device and a predetermined voltage signal is received from the transmitting device, then the receiving device is transferred to a state for a second type of transmitting device. | 07-09-2009 |
20090178097 | METHOD, APPARATUS AND SYSTEM FOR GENERATING AND FACILITATING MOBILE HIGH-DEFINITION MULTIMEDIA INTERFACE - A method, apparatus and system are provided for generating and facilitating Mobile High-Definition Multimedia Interface. In one embodiment, an apparatus includes a transmitter configured to merge multiple channels of a high-definition interface into a single channel to generate a mobile high-definition interface, the mobile high-definition interface configured to facilitate carrying of high-definition media content in a mobile device. The apparatus further includes a receiver coupled with the transmitter, the receiver configured to receive the single channel, and to unmerge the single channel into the multiple channels. | 07-09-2009 |
20090222905 | METHOD, APPARATUS, AND SYSTEM FOR PRE-AUTHENTICATION AND PROCESSING OF DATA STREAMS - A method, apparatus and system for pre-authenticating ports is disclosed. In one embodiment, an active port facilitating communication of media content between a transmitting device and a receiving device is identified, while the active port are associated with a first High-Definition Content Protection (HDCP) engine. Then, inactive ports that are in idle mode serving as backup ports to the active port are identified, while the inactive ports are associated with a second HDCP engine. Pre-authentication of each of the inactive ports is performed so the pre-authenticated inactive ports can subsequently replace the active port if a port switch is performed. | 09-03-2009 |
20090323830 | CURRENT MODE CIRCUITRY TO MODULATE A COMMON MODE VOLTAGE - In some embodiments, a chip includes transmitters to transmit differential signals on conductors; and current mode circuitry to selectively modulate a common mode voltage of the differential signals to communicate data. In other embodiments, a system includes a first chip to transmit first and second differential signals on conductors, and a second chip. The second chip includes receivers to receive the first and second differential signals from the conductors and provide received signals representative thereof, and current mode circuitry to selectively modulate a common mode voltage of either the first or second differential signals to communicate data and wherein the first chip includes common mode detection circuitry to detect changes in the common mode voltage. Other embodiments are described and claimed. | 12-31-2009 |
20100104029 | INDEPENDENT LINK(S) OVER DIFFERENTIAL PAIRS USING COMMON-MODE SIGNALING - Methods and apparatuses for using single-ended common mode signaling, additional data can be transferred in backward, forward, and/or both directions over an existing differential pair connection without adding extra wire. | 04-29-2010 |
20100109795 | TRANSMISSION OF ALTERNATIVE CONTENT OVER STANDARD DEVICE CONNECTORS - Transmission of alternative content over standard device connectors. An embodiment of a method includes connecting a first device to a second device utilizing a standard connector, the connector including multiple pins, and detecting whether the second device is operating in a standard mode or an alternative mode. If the second device is operating in the alternative mode, then switching one or more pins of the standard connector for the alternative mode and transmitting or receiving signals for the alternative mode via the plurality of pins of the standard connector. | 05-06-2010 |
20100177892 | METHOD, APPARATUS, AND SYSTEM FOR PRE-AUTHENTICATION AND KEEP-AUTHENTICATION OF CONTENT PROTECTED PORTS - A method, apparatus and system for providing pre-authentication and keep-authentication of content protected ports system employing a ratio of one decipher processing engine (e.g., HDCP engine) associated with multiple ports is disclosed is disclosed. In one embodiment, a receiving device is pre-authenticated by a transmitting device, wherein the receiving device to receive a data stream from the transmitting device via a first data path. Further, a first High-Definition Content Protection (HDCP) engine is associated with a first port in the first data path, the first HDCP engine coupled with a second HDCP engine. The second HDCP engine is associated with a plurality of ports in a second data path, each of the plurality of ports associated with a memory pipe having state information relating to each of the plurality of ports, the state information being used to pre-authenticate the receiving device. | 07-15-2010 |
20110193579 | DETERMINATION OF PHYSICAL CONNECTIVITY STATUS OF DEVICES BASED ON ELECTRICAL MEASUREMENT - Embodiments of the invention are generally directed to determination of physical connectivity status of devices based on electrical measurement. An embodiment of a method includes discovering a connection of a first device with a second device, and performing an electrical measurement of the second device by the first device via the connection between the first device and the second device, where performing the electrical measurement includes sensing by the first device of an element of the second device. The method further includes, if the sensing by the first device fails to detect the element of the second device and a predetermined condition for the electrical measurement is enabled, then determining by the first device that the connection with the second device has been lost. | 08-11-2011 |
20120003863 | DETECTION OF CABLE CONNECTIONS FOR ELECTRONIC DEVICES - Embodiments of the invention are generally directed to detection of cable connections for electronic devices. An embodiment of an apparatus includes a port for the connection of a cable, the port being compatible with a first protocol and a second protocol, the port including a connector for the second protocol, the port including multiple pins including a first pin and a second pin. The apparatus further includes a pull-up resistor coupled between the first pin and a voltage source, a pull-down resistor coupled between the second pin and ground, and a voltage detection element coupled with the second pin. The apparatus is to determine that a cable compatible with the first protocol is connected to the port if the voltage detection element detects a voltage above a first threshold. | 01-05-2012 |
20120005377 | DETECTION OF CABLE CONNECTIONS FOR ELECTRONIC DEVICES - Embodiments of the invention are generally directed to detection of cable connections for electronic devices. An embodiment of an apparatus includes a port for the connection of a cable, the port being compatible with a first protocol and a second protocol, the port including multiple pins including a first pin for a first line and a second pin for a second line. The apparatus further includes a processor to determine a type of source device connected to the cable, where determination of the type of source device includes the apparatus detecting a low signal on the first line and a high signal on the second line, and, upon detecting the low signal on first line and the high signal on the second line, the apparatus initiates a discovery sequence, the discovery sequence including transmitting a signal sequence on the second line and attempting to receive the signal sequence on the second line. If the signal sequence is successfully received on the second line, the apparatus determines that a source device compatible with the first protocol is connected to the cable. | 01-05-2012 |
20120182473 | MECHANISM FOR CLOCK RECOVERY FOR STREAMING CONTENT BEING COMMUNICATED OVER A PACKETIZED COMMUNICATION NETWORK - A mechanism for facilitating clock recovery for streaming content over a packetized network is described. A method of embodiments includes receiving an estimated data stream at a first device. The estimated data stream may include estimated data format information relating to a data stream expected to be received at the first device. The method may further include performing, at the first device, clock regeneration of the estimated data stream based on the estimated data format information. The clock regeneration may include performing clock recovery of the estimated data stream. | 07-19-2012 |
20120204048 | MECHANISM FOR LOW POWER STANDBY MODE CONTROL CIRCUIT - Embodiments of the invention are generally directed to a low power standby mode control circuit. An embodiment of an apparatus includes a processor, an interface for a connection with a second apparatus, and an operational circuit, wherein the processor is to disable one or more power connections to the operational circuit in a standby mode. The apparatus further includes a standby mode control circuit, the standby control circuit to operate using a standby power source, wherein the standby mode control circuit is to detect a stimulus signal from the second apparatus and in response to the stimulus signal the standby control circuit is to signal the processor, the processor to enable the one or more power connections of the operational circuit. | 08-09-2012 |
20150026366 | Cable with Circuitry for Communicating Performance Information - A cable with circuitry that enables the cable to communicate data in one of at least two different signal modes of operation is presented. In a first signal mode, the cable enables data communication between the circuitry and either a source device or a sink device. The first signal mode can be used either to communicate properties of the cable itself or of a signal passing through the cable to either the source device or the sink device. In a second signal mode, the cable enables data communication between the source device and the sink device. The second signal mode can be used to communicate data in accordance with a predetermined protocol. | 01-22-2015 |
20150089094 | Determination of Physical Connectivity Status of Devices Based on Electrical Measurement - Embodiments of the invention are generally directed to determination of physical connectivity status of devices based on electrical measurement. An embodiment of a method includes discovering a connection of a first device with a second device, and performing an electrical measurement of the second device by the first device via the connection between the first device and the second device, where performing the electrical measurement includes sensing by the first device of an element of the second device. The method further includes, if the sensing by the first device fails to detect the element of the second device and a predetermined condition for the electrical measurement is enabled, then determining by the first device that the connection with the second device has been lost. | 03-26-2015 |