摘要:
In an interactive video-on-demand system, real-time programs are encoded as a transport stream including a plurality of transport stream packets. Some of the transport stream packets include timing signals indicating the real time of the program. The transport stream packets are formatted into transport cells for transport over an asynchronous transfer mode network from a source to a destination. The cells are transported at a transport rate which is determined by a network clock. The transport rate is chosen to deliver the transport stream faster than the real time of the program. While transporting the transport stream, it is determined if the transport stream is being transported ahead of the real time of the program. In this case, idle cells are injected into the transport stream to have the program arrive at the destination in the real time of the program.
摘要:
Promotional or informational materials are selected for presentation to mobile device users based at least in part on knowledge about where those users intend to go. If a user performs a points-of-interest search that evinces a particular intent, then the mobile device can select informational materials that are associated with that particular intent, and then display those informational materials. The informational materials selected can be limited to those that are mapped to a point of interest that the searching user selected from a list of points of interest that are relevant to the user's specified intent. Additionally or alternatively, the mobile device might display only the informational materials that are mapped to a particular point of interest in response to detecting that the user has entered within a specified proximity of that particular point of interest, as determined through a global positioning system of the user's mobile device.
摘要:
Techniques that facilitate interoperation between an accessory and multiple devices. In one set of embodiments, a device can receive, over a first communication channel of a first type, information from an accessory identifying communication channels of a second type supported by the accessory. The device can further establish a connection with the accessory on a second communication channel of the second type. Upon establishment of the connection, the device can transmit over the first communication channel a notification identifying the connection on the second communication channel. Based on the notification, the accessory can determine that it is connected to the same device on the first and second communication channels and can operate accordingly.
摘要:
A system for supporting translation of virtual IP addresses to Ethernet/MAC addresses in a multi-Virtual Network environment, in which address resolution tables are generated and maintained by Virtual Networking Devices. Virtual Networking Device (VND) sends and/or receives Virtual Network-specific ARP traffic. The Virtual Network-specific ARP traffic includes ARP requests or responses that map a MAC address to an IP address in the private IP address space of an associated Virtual Private Network. The disclosed Virtual Networking Devices can therefore operate in configurations in which multiple independent entities operate on separate Virtual Networks, and where servers may be accessible via virtual IP addresses within the private IP address spaces of associated Virtual Networks.
摘要:
Postponing the interrupt for an I/O event can increase system throughput by amortizing the cost of the interrupt service routine over multiple I/O events. In current systems that provide interrupt postponement, the time parameter is fixed. Fixed values can lead to parameter configuration errors, excessive characterization work to generate parameter values, and a failure to automatically re-configure to system changes or to external load changes. The proposed mechanism measures actual system experience and eliminates the parameter configuration effort by filtering its own experience to derive a target value for interrupt postponement. A current postponement value with the potentially greater variance than the target is used to rapidly respond to abrupt change in offered load. The invention also benefits tasks with real-time deadlines to provide correct system operation.
摘要:
An accessory having an RF tuner for digital radio, such as HD radio, can be in communication with a media player such as a portable media device (“PMD”). The user can be given the ability to command the accessory to provide raw digital data, the ability to scan only for stations having digital audio content (or for all available stations), the ability to provide station lists of stations having digital audio content (or all available stations), and the ability to request and store metadata beyond that for stations actually being listened to provide enhanced search capabilities. Enhanced metadata and searching can provide the listener the ability to refine station choices without having to listen at length to any particular station, and further can facilitate tagging broadcast tracks for subsequent access and/or purchase.
摘要:
A portable hockey or soccer goal that can be readily converted between a fully open configuration and a fully closed storage or transport configuration without requiring any assembly or disassembly and having a rear and side stabilizing assembly such that the goal has improved strength while still being collapsible into a compact carrying bag.
摘要:
Sensor data is communicated between two electronic devices under control of the receiving device. For example, one device is equipped with one or more sensors that can produce a stream of real-time readings. The other device can request the sensor data from the first device and can also specify to the first device one or more throttling criteria to control or limit the amount of sensor data that is sent. Each throttling criterion can specify both a category of criterion (e.g., time-based, value-based, etc.) and a throttling parameter specific to the category. The first device can monitor the sensor data to determine when a throttling criterion specified by the second device is satisfied; when the throttling criterion is satisfied, the first device can send the current sensor reading as sensor data to the second device.
摘要:
An accessory having an RF tuner for digital radio, such as HD radio, can be in communication with a media player such as a portable media device (“PMD”). The user can be given the ability to command the accessory to provide raw digital data, the ability to scan only for stations having digital audio content (or for all available stations), the ability to provide station lists of stations having digital audio content (or all available stations), and the ability to request and store metadata beyond that for stations actually being listened to provide enhanced search capabilities. Enhanced metadata and searching can provide the listener the ability to refine station choices without having to listen at length to any particular station, and further can facilitate tagging broadcast tracks for subsequent access and/or purchase.