US 5,631,701 AGranted

Image data transfer system operable with an electronic still camera

AssigneeFuji Photo Film Co., Ltd.

InventorIzumi Miyake

Life of this patent

Estimating the term…

Loading patent…

Abstract

In an image data transfer system including an electronic still camera and equipment separably connected to the camera, the camera has an imaging device for shooting a desired subject. A signal converter converts an image signal generated by the imaging device to digital image data. A data processor executes predetermined image processing with the digital image data. A transmitting section sends the processed image data output from the data processor to the equipment. A controller controls the transmitting section in such a manner as to control a transfer rate for transferring the image data to the equipment. The equipment has a receiving section connected to the transmitting section of the camera by a data line for transferring the image data, and a control line for reporting to the camera the permission/inhibition of data transfer from the camera by using an ON/OFF control signal. The controller controls, at the time of transfer of the image data to the equipment, the transmitting section so as to send a transfer rate set command representative of a transfer rate to the equipment over the data line. In response, the receiving section reports to the camera whether or not the equipment accepts the transfer rate by varying the ON/OFF control signal in the form of pulses.

Claims20

Dependent claims

In an image data transfer system comprising an electronic still camera for generating an image signal representative of a subject picked up, and recording the image signal in a form of digital image data, and equipment separably connected to said camera and capable of receiving the image data from said camera, said camera comprising:

imaging means for shooting the subject to produce the image signal;
converting means for converting the image signal generated by said imaging means into the digital image data;
data processing means for executing predetermined image processing with the digital image data;
transmitting means for transmitting the image data output from said data processing means to said equipment;
and
control means for controlling said transmitting means to thereby control a transfer rate for transferring the image data to said equipment;
said equipment comprising:
receiving means connected to said transmitting means of said camera by a data line for transferring the image data, and a control line for reporting to said camera whether transfer of the image data from said camera to said equipment is permitted or inhibited by using a control signal selectively taking an ON state and an OFF state respectively;
wherein said control means of said camera controls, at the time of transfer of the image data to said equipment, said transmitting means to thereby send a transfer rate set command representative of the transfer rate of the image data to said equipment over said data line, and wherein said receiving means of said equipment reports to said camera whether or not said equipment accepts the transfer rate by varying the ON state and the OFF state of the control signal in a form of pulses.

6 more elements

an image pick-up device for shooting the subject to produce the image signal;
an analog-to-digital converter for converting the image signal generated by said image pick-up device to the digital image data;
a data processor for executing predetermined image processing with the digital image data;
a transmitter for transmitting the image data output from said data processor to said equipment;
and
a control circuit for controlling said transmitter to thereby control a transfer rate for transferring the image data to said equipment;
said equipment comprising:
a receiver connected to said transmitter of said camera by a data line for transferring the image data, and a control line for reporting to said camera whether transfer of the image data from said camera to said equipment is permitted or inhibited by using a control signal selectively taking an ON state and an OFF state respectively;
wherein said control circuit of said camera controls, at the time of transfer of the image data to said equipment, said transmitter to thereby send a transfer rate set command representative of the transfer rate of the image data to said equipment over said data line, and wherein said receiver of said equipment reports to said camera whether or not said equipment accepts the transfer rate by varying the ON state and the OFF state of the control signal in a form of pulses.

6 more elements

Dependencies are inferred from the claim text.