Abstract: An object of the present invention is to provide a monitoring system, a monitoring device, and a construction machine each capable of improving the convenience for a user during monitoring while ensuring security related to the leakage of video data of a peripheral region. In a monitoring system 10 of the present invention, a monitoring device 30 reads information related to an access ID from a first authentication-related information display portion 208 arranged outside an operator's cab of a construction machine 20, using a second camera 300, and also reads information related to an access password from a second authentication-related information display portion 210 arranged in the operator's cab, using the second camera 300. The access ID may include a combination of the identification number of the construction machine 20 and a code representing the type of the construction machine 20.

Abstract: An aspect of the present invention provides an image processing apparatus, comprising: a monitor which displays various information; an input device with which a user performs an input operation; an identification device which identifies the user who has performed the input operation with the input device; an image reading device which reads images; an image selection device which, according to the input operation with the input device, selects an image which is a predetermined processing target, from the images read by the image reading device, the image selection device identifying a plurality of users who have performed input operations for selecting images, by the identification device, and selecting the image which is the processing target, for each of the users who have performed the input operations for selecting the images; and a processing device which executes a process with the image selected by the image selection device as the processing target.

Abstract: The present invention provides an internally-toothed member of reduced size and enhanced quality, durability and productivity in manufacture. This internally-toothed member has a first cylinder portion and a second cylinder portion which is larger in diameter than the first cylinder portion. First and second internal teeth are formed to protrude radially inwardly from inner peripheral surfaces of the first and second cylinder portions respectively. Because a meshing portion can be formed as second internal teeth protruding from an inner periphery of the second cylinder portion, the diameter of the internally-toothed member is relatively small. Because the area between the second internal teeth and a concave portion and the concave portion itself do not decrease in thickness during formation of the second internal teeth, it is possible to prevent cracking and to thereby enhance durability of the internally-toothed member.

Abstract: Microprocessors use a conditional branch instruction so as to change processing in accordance with conditions. According to the prior art, a NOP instruction, which causes no operation, is used when a condition is satisfied, and the use of the NOP instruction inevitably lengthens the processing time. According to the present invention, a conditional transfer instruction is included in the instruction set of a microprocessor, and a flag decoder is additionally employed. The flag decoder determines whether a condition is satisfied or not, and outputs a control signal on the basis of the determination. The control signal is supplied to the instruction decoder of the processor to make a data transfer operation effective or ineffective. Accordingly, it is not necessary to use a NOP instruction, and the processing time can be as short as possible.

Abstract: In a pipelined processor, when a conditional branch is effected in accordance with a state of calculation generated by immediately previous instruction, it is necessary for a conventional technique to insert a NOP (no operation) instruction before a conditional branch instruction. This lowers the processing efficiency. In order to solve this problem, a delay circuit generates a clock signal .phi.' which is supplied to a program counter and an instruction memory. The clock signal .phi.' is delayed behind a system clock .phi.. This obviates the need to insert such a NOP instruction and the processing efficiency is improved.