I/O card, electronic equipment using I/O card, and procedure of starting up such electronic equipment
AssigneeCanon Kabushiki Kaisha
InventorsKenichi Kondo, Takeshi Ogawa, Keihiro Kurakata
Life of this patent
Estimating the term…
Abstract
A system includes a computer and digital camera connected to each other; automatic image transfer or remote control can be achieved readily, and a power supply route is simple. A card connector for an I/O card and a back connector thereof are linked by a power supply line. When the I/O card is connected to a digital camera, power supplied over an interface cable joined with the back connector is supplied to the digital camera. Moreover, when the I/O card is connected to the digital camera, a start-up instruction signal is sent from the I/O card to the digital camera. A CPU in the digital camera executes start-up processing.
Claims27
An I/O card including one or more circuits, comprising:
- a first connecting means for linkage to a first apparatus;
- a second connecting means for linkage to a second apparatus;
- and
- a supply means for supplying power to the one or more circuits of said I/O card, the power being supplied either from the first apparatus via said first connecting means or from the second apparatus via said second connecting means.
An electronic apparatus, comprising:
- a battery;
- a connecting means for connecting an I/O card, said connecting means including a power supply line and a wake-up signal line;
- a first power receiving means for receiving power supplied over the power supply line included in said connecting means;
- a second power receiving means for receiving power supplied from said battery;
- a selecting means for selecting one of said first power receiving means and said second power receiving means;
- and
- a signal receiving means for receiving a wake-up signal supplied over the wake-up signal line included in said connecting means.
An electronic system comprising:
- a first apparatus;
- a second apparatus;
- an I/O card including one or more circuits, the I/O card further including:
- a first connecting means for linkage to the first apparatus,
- a second connecting means for linkage to the second apparatus, and
- a supply means for supplying power to the one or more circuits of said I/O card, the power being supplied either from the first apparatus via the first connecting means or from the second apparatus via the second connecting means;
- and
- the second apparatus including:
- a battery,
- an I/O card connecting means for connecting said I/O card to said second apparatus, said I/O card connecting means including a power supply line and a wake-up signal line,
- a first power receiving means for receiving power supplied over the power supply line included in the I/O card connecting means,
- a second power receiving means for receiving power supplied from the battery,
- a selecting means for selecting one of the first power receiving means and the second power receiving means, and
- a signal receiving means for receiving a wake-up signal supplied over the wake-up signal line included in the I/O card connecting means.
Dependencies are inferred from the claim text.