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:
Duplex audio is provided for a mobile communication device and an accessory. In some embodiments, the accessory can selectably operate in a duplex audio mode, concurrently sending audio to and receiving audio from the mobile communication device, or in another audio mode. In duplex audio mode, the accessory can enable its internal audio processing operations (e.g., echo cancellation) while the mobile communication device disables its corresponding internal operations or vice versa. The mobile communication device can control when the accessory transitions into and/or out of duplex audio mode.
摘要:
A method, system, and connector interface for transferring status information between a media player and an accessory. The method includes determining, by the accessory, when a button event occurs; and transmitting, by the accessory, at least one button status command to the media player, where the one or more button status commands comprise a context-specific button status command and at least one command associated with a particular media type. According to the method and system disclosed herein, the media player and accessory may utilize a plurality of commands in a variety of environments such as within a connector interface system environment to facilitate the transfer of status information.
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:
An interface and protocol allow a media player to communicate with external accessories over a transport link. The protocol includes a core protocol functionality and a number of accessory lingoes. Examples of accessory lingoes include a microphone lingo, a simple remote lingo, a display remote lingo, an RF transmitter lingo, and an extended interface lingo.
摘要:
A portable computing device (PCD) can selectively supply power to an accessory during PCD hibernation. In some embodiments, the PCD's default behavior is to disable accessory power output during hibernation, and this default behavior can be overridden in response to a request from a connected accessory. The accessory can use the power supplied during PCD hibernation to detect user input (or other) events and wake the PCD from hibernation in response to a detected event. Some accessories can wake the PCD by emulating accessory detachment and reattachment.
摘要:
A media player can have advanced-playlist creation capabilities such as the ability to automatically generate a playlist around a “seed” song selected by a user. In some embodiments, the accessory can determine whether the media player can use a particular song as a seed song for an advanced playlist and can so inform the user. The user can then operate the accessory's user interface to create an advanced playlist based on a particular song, rather than having to interact directly with the media player.
摘要:
Embodiments disclosed herein provide for identification processes and/or procedures for accessories coupled with a mobile computing device. During identification an accessory can communicate lingo information that includes only those lingoes the accessory can use while coupled with the mobile computing device. The accessory can also communicate accessory protocol information to the mobile computing device during identification. The accessory can be limited to using only those lingoes and/or those protocols identified during identification. Various other accessory information, capabilities, preferences, etc. can also be communicated to the mobile computing device during identification.
摘要:
An interface and protocol allow a media player to communicate with external accessories over a transport link. The protocol includes a core protocol functionality and a number of accessory lingoes. Examples of accessory lingoes include a microphone lingo, a simple remote lingo, a display remote lingo, an RF transmitter lingo, and an extended interface lingo.
摘要:
An accessory communicates with a PMD to store tags associated with broadcasts in a file maintained in a storage medium of the accessory. In one embodiment, the accessory sends a command to the PMD to create or open a tag file that resides on the PMD. Once opened, the tag file is held open by the PMD until the accessory closes it (or disconnects), allowing multiple tags to be written to one file. Each time the user requests a new tag, the accessory generates a tag containing information descriptive of the broadcast material (e.g., song title, artist, radio station identifier, time of tagging, etc.) and writes the tag to the tag file using a write command to the PMD.