Abstract:
A power manager for managing power delivered to a battery operated peripheral device is disclosed. The power manager includes an input current limiter arranged to suppress a power surge associated with an insertion event by a power cable arranged to provide an external voltage. A voltage converter unit coupled to the input current limiter converts the received external voltage to a supply voltage that is transmitted by way of a main bus to a voltage sensor unit coupled thereto. During the insertion event, a comparator unit coupled to the voltage sensor, sends a first switching signal to a switchover circuit that responds by connecting the peripheral device and an uncharged battery to the main bus such that the supply voltage is provided thereto. When the battery is substantially fully charged, the switchover circuit responds by electrically disconnecting the battery so as to not overcharge the battery.
Abstract:
A media player system is disclosed. One aspect of the media player system pertains to a docking station that allows a media player to communicate with other media devices. Another aspect of the media player system pertains to a wireless media player system that includes a hand held media player capable of transmitting information over a wireless connection and one or more media devices capable of receiving information over the wireless connection. Another aspect of the media player system pertains to a method of wirelessly connecting the hand held media player to another device. The method includes selecting a media item on the hand held media player; selecting one or more remote recipients on the hand held media player; and transmitting the media item locally to the hand held media player, and wirelessly to the selected remote recipients. Another aspect of the media player system pertains to a hand held music player that includes a transmitter for transmitting information over a wireless connection. The transmitter is configured to at least transmit a continuous music feed to one or more personal tuning devices that each include a receiver capable of receiving information from the transmitter over the wireless connection. Yet another aspect of the media player system pertains to a connector that includes a housing and a plurality of spatially separated contacts mounted within the housing. A first set of contacts are directed at a first functionality and a second set of contacts are directed at a second functionality that is different than the first functionality.
Abstract:
In a portable multimedia device, a method, apparatus, and system for automatically updating programmable buttons on a remote client device using a set of user preferences is described. A remote client device is coupled (either wired or wirelessly) to the host computer and the preference file is passed to the remote client device which uses the preference file to automatically update any programmable buttons included therein to execute the desired suite of functions. In some cases, a combination of buttons can be used to perform a particular function whereas in other cases, a single button can be associated with a particular function.
Abstract:
In a portable FireWire compatible device, a direct memory access (DMA) bus switch coupled by way of a DMA bus to a central processing unit (CPU), a local hard drive (HDD), and a FireWire port, provides a direct connection between the FireWire port and the HDD bypassing a main bus and the CPU when a data transfer request is received and processed by the CPU. Otherwise, until the data transfer request is received and processed, the CPU is directly connected to the HDD. In this way, a high speed data transfer between the FireWire port and the HDD is provided only when an appropriate data transfer request is received and processed.