Abstract:
Embodiments relate to half-duplex bidirectional transmission of data compliant with a first standard (e.g., Universal Serial Bus (USB) standard) over a physical channel of a multimedia link for transmitting audio/video (“A/V”) data compliant with a second standard (e.g., Mobile High-Definition Link (MHL) standard) between a source device and a sink device using time division multiplexing (TDM). The source device sends units of data including A/V data and forward data compliant with the first standard at first times whereas the sink device sends units of data including backward data compliant with the first standard at second times between transmissions from the source device. The first times do not overlap with the second times. Synchronization signals may be added to the first and second units of data to align character symbols embedded in the first and second units of data.
Abstract:
A mechanism for memory reduction in picture-in-picture video generation is disclosed. A method of embodiments of the invention includes receiving, from a transmitting device, a plurality of video streams at a receiving device coupled to the transmitting device, wherein a first video stream of the plurality of video streams is designated to be displayed as a main video and one or more other video streams of the plurality of video streams are designated to be displayed as one or more sub videos to the main video. The method further includes transforming the one or more other video streams into the one or more sub videos, temporarily holding the one or more sub videos in a compressed frame buffer, and merging, via pixel replacement, the main video and the one or more sub videos into a final video image capable of being displayed on a single screen utilizing a display device, wherein pixel replacement is performed such that the one or more sub videos occupy one or more sections of pixels of screen space pixels occupied by the main video.
Abstract:
A mechanism for facilitating dynamic timestamp-less clock generation for transmitting media streams over shared channels is described. In one embodiment, a method includes periodically counting and producing, at a first media device, a number of audio/video (“A/V”) samples, generating a pace clock based on the number of A/V samples, generating a target clock based on the pace clock, and transmitting an A/V media stream based on a frequency difference between a pace frequency relating to the pace clock and a target frequency relating to the target clock.
Abstract:
A mechanism for facilitating dynamic timestamp-less clock generation for transmitting media streams over shared channels is described. In one embodiment, a method includes periodically counting and producing, at a first media device, a number of audio/video (“A/V”) samples, generating a pace clock based on the number of A/V samples, generating a target clock based on the pace clock, and transmitting an A/V media stream based on a frequency difference between a pace frequency relating to the pace clock and a target frequency relating to the target clock.
Abstract:
Embodiments of the invention are generally directed to transmission and detection of multi-channel signals in reduced channel format. An embodiment of a method for transmitting data includes determining whether a first type or a second type of content data is to be transmitted, where the first type of content data is to be transmitted at a first multiple of a base frequency and the second type of data is to be transmitted at a second multiple of the base frequency. The method further includes selecting one or more channels from a plurality of channels based on the type of content data, clocking a frequency on the first or second multiple of the base frequency according to the type of content data in the selected channels, modifying the content data to fit within a single output channel, and transmitting the modified data via a single output channel at the chosen multiple of the base frequency.
Abstract:
An apparatus for interfacing with a multimedia communication link comprises a half-duplex translation layer circuit operating in half-duplex and a full-duplex link layer circuit to communicate over a control bus of the multimedia communication link in full duplex. The apparatus further comprises an arbitration circuit communicatively coupled between the half-duplex translation layer circuit and the full-duplex link layer circuit, the arbitration circuit to control data flow between the half-duplex translation layer circuit and the full-duplex link layer circuit. The arbitration circuit provides interface and signaling rules for transmitting packets from the half-duplex translation layer circuit to the full-duplex link layer circuit, receiving packets via the full-duplex link layer circuit at the half-duplex translation layer circuit, and resolving conflict arising due to bidirectional data flow at the arbitration logic.
Abstract:
Embodiments of the invention are generally directed to multiple protocol tunneling using time division operations. An embodiment of an apparatus includes an interface for communication with a second apparatus, the interface including a shared communication link; and a multiplexer to multiplex data of each of multiple protocols into time slots for transmission, the protocols including a first protocol. The time slots are distributed among the protocols, where the distribution of the time slots among the protocols includes assigning one or more time slots to the first protocol to enable the data of the first protocol to meet one or more performance requirements for the first protocol.