摘要:
A portable computing device (PCD) can be connected to multiple accessories concurrently in a daisy chain topology. with the PCD at a “front” end of the chain. At least one intermediary accessory (or relay) provides one port for connection to the PCD and another port for connection to another accessory, which can also be a relay. Each connected accessory can interact with the PCD to invoke functionality, receive or deliver content, etc. Concurrently, each relay accessory can also act as a relay for other accessories in the chain, directing signals from a downstream accessory toward the PCD and directing signals received from upstream toward a downstream accessory, thereby allowing downstream accessories to interact with the PCD. The presence of upstream intermediaries can be transparent to a downstream accessory.
摘要:
Track-identifying information can be collected from a broadcast using a portable media device capable of receiving broadcast content in combination with an accessory capable of communicating user input to the portable media player. In some embodiments, the portable media player can detect the presence of track-identifying metadata (a “tag”) within a received broadcast and can alert the accessory when a tag is available for a currently-playing track. If the accessory instructs the portable media player to store the tag, the portable media player can do so and can alert the accessory when a tag for a track has been stored. In some embodiments, the accessory can also remotely control other broadcast-receiving functions of the portable media device, such as entering or exiting a broadcast-receiving mode of operation.
摘要:
Track-identifying information can be collected from a broadcast using a portable media device capable of receiving broadcast content in combination with an accessory capable of communicating user input to the portable media player. In some embodiments, the portable media player can detect the presence of track-identifying metadata (a “tag”) within a received broadcast and can alert the accessory when a tag is available for a currently-playing track. If the accessory instructs the portable media player to store the tag, the portable media player can do so and can alert the accessory when a tag for a track has been stored. In some embodiments, the accessory can also remotely control other broadcast-receiving functions of the portable media device, such as entering or exiting a broadcast-receiving mode of operation.
摘要:
Methods, apparatus, and circuits for managing power among portable computing devices and one or more accessories. One example provides commands to improve power management between a portable computing device and one or more accessories. Other examples provide commands that may allow a portable computing device to charge at a maximum available current level while providing an accessory with sufficient current for its proper operation. Another may help prevent a portable computing device from drawing a high level of current that could be detrimental to an accessory, while others provide commands that may allow a battery pack to instruct a portable computing device to not charge its internal battery. Another example may allow a portable computing device to determine which power supply among multiple power supplies should be used to power an accessory, while others may allow an accessory to retrieve charging current parameters from a portable computing device.
摘要:
Methods, apparatus, and circuits for managing power among portable computing devices and one or more accessories. One example provides commands to improve power management between a portable computing device and one or more accessories. Other examples provide commands that may allow a portable computing device to charge at a maximum available current level while providing an accessory with sufficient current for its proper operation. Another may help prevent a portable computing device from drawing a high level of current that could be detrimental to an accessory, while others provide commands that may allow a battery pack to instruct a portable computing device to not charge its internal battery. Another example may allow a portable computing device to determine which power supply among multiple power supplies should be used to power an accessory, while others may allow an accessory to retrieve charging current parameters from a portable computing device.
摘要:
Methods, apparatus, and circuits for managing power among portable computing devices and one or more accessories. One example provides commands to improve power management between a portable computing device and one or more accessories. Other examples provide commands that may allow a portable computing device to charge at a maximum available current level while providing an accessory with sufficient current for its proper operation. Another may help prevent a portable computing device from drawing a high level of current that could be detrimental to an accessory, while others provide commands that may allow a battery pack to instruct a portable computing device to not charge its internal battery. Another example may allow a portable computing device to determine which power supply among multiple power supplies should be used to power an accessory, while others may allow an accessory to retrieve charging current parameters from a portable computing device.
摘要:
Methods, apparatus, and circuits for managing power among portable computing devices and one or more accessories. One example provides commands to improve power management between a portable computing device and one or more accessories. Other examples provide commands that may allow a portable computing device to charge at a maximum available current level while providing an accessory with sufficient current for its proper operation. Another may help prevent a portable computing device from drawing a high level of current that could be detrimental to an accessory, while others provide commands that may allow a battery pack to instruct a portable computing device to not charge its internal battery. Another example may allow a portable computing device to determine which power supply among multiple power supplies should be used to power an accessory, while others may allow an accessory to retrieve charging current parameters from a portable computing device.
摘要:
Methods, apparatus, and circuits for managing power among portable computing devices and one or more accessories. One example provides commands to improve power management between a portable computing device and one or more accessories. Other examples provide commands that may allow a portable computing device to charge at a maximum available current level while providing an accessory with sufficient current for its proper operation. Another may help prevent a portable computing device from drawing a high level of current that could be detrimental to an accessory, while others provide commands that may allow a battery pack to instruct a portable computing device to not charge its internal battery. Another example may allow a portable computing device to determine which power supply among multiple power supplies should be used to power an accessory, while others may allow an accessory to retrieve charging current parameters from a portable computing device.
摘要:
Methods, apparatus, and circuits for managing power among portable computing devices and one or more accessories. One example provides commands to improve power management between a portable computing device and one or more accessories. Other examples provide commands that may allow a portable computing device to charge at a maximum available current level while providing an accessory with sufficient current for its proper operation. Another may help prevent a portable computing device from drawing a high level of current that could be detrimental to an accessory, while others provide commands that may allow a battery pack to instruct a portable computing device to not charge its internal battery. Another example may allow a portable computing device to determine which power supply among multiple power supplies should be used to power an accessory, while others may allow an accessory to retrieve charging current parameters from a portable computing device.
摘要:
A camera capable of capturing still images and video and included in a portable media device can be controlled remotely using an accessory. The accessory can register with the PMD to automatically receive notifications whenever there is a change in the camera state. The camera states can include mode, operation status, and configuration settings. The accessory can send instructions to a camera application that interfaces with the camera to control the camera. The accessory can remotely activate the camera, change camera mode, and send instructions to operate the camera. The accessory and the PMD can concurrently control the camera. The PMD can send the captured still images and recorded video to the accessory for preview and receive instructions from the accessory on disposition of the still images and the video.