In order to make it possible to determine the erroneous insertion of an information recording medium at a position close to a recording medium insertion port by utilizing a notch portion provided at the information recording medium, the present invention relates to an electronic apparatus comprising a recording medium insertion port for taking in and out a memory stick having a notch portion used to prevent erroneous insertion and provided in one corner, and an erroneous insertion preventive mec...

Erroneous cutting prevention scissors include an operating member having a shearing blade, another operating member having a receiving portion provided in a closable and separable manner with respect to the shearing blade, and a detecting element for detecting a live condition of an electric wire when the shearing blade is in contact with a conductor of the electric wire. A solenoid is provided which is excited when the detecting means detects the live condition of the electric wire. A first lat...

A camera in which a shutter device is charged in response to film wind-up and is released by shutter operating means to effect exposure, and including a change-over device displaceable for setting a film transport mechanism corresponding to each of film wind-up and rewind conditions, comprises means for preventing the operation of the shutter device in response to the displacement of the change-over device for setting the film transport mechanism in film rewind condition.

An erroneous-operation preventive apparatus operable with an operation medium has a unit for receiving the operation medium. The unit includes first and second data modifiers and the operation medium stores first data, second data equal to the first data modified by the first data modifier, and third data equal to the first data modified by the second data modifier. When the operation medium is set in the unit, the first and second modifiers modify the first data from the operation medium. The m...

A drop-out detector for detecting the absence of a pulse in either of first and second pulse trains, especially for use with the spindle servo error generator of a videodisc mastering machine. Prior attempts at providing a drop-out detector function for the spindle servo error generator rely on the use of RC based timing circuits to create time windows within which to look for the presence or absence of a reference or tach pulse, as the case may be. Such arrangements provide satisfactory perform...

An erroneous erasure preventing piece to be detected is formed simultaneously with disk cassette covers by a molding process. The piece has a configuration which enables it to be slidably remounted to the cassette disk covers after being torn off the cover.

A transceiver for computer controlled stacker cranes comprising an interface which controls the voltage level of incoming and outgoing serial signals, a sampling circuit and a voting circuit which together prevents transmission of transient or improper signals received from the interface, shift registers converting incoming serial data to parallel data and also converting stored parallel data to outgoing serial data, a temporary storage memory which holds parallel data received from the shift re...

A method, system, and computer-readable medium for assisting in automatically identifying and handling erroneous orders is described. In some situations, an automatic identification is made of received orders from users that are duplicates of one or more other orders recently placed by those users. When orders are identified as being potentially erroneous, fulfillment of those orders may be delayed while automatically querying the users to obtain manual confirmation to continue with the order fu...

A device for preventing erroneous handling of a camera capable of dual type automatic exposure control including shutter time preference and diaphragm preference, wherein the device senses whether the camera is set at a diaphragm preference position or at a diaphragm automatic adjusting position with regard to the diaphragm setting means, and whether the shutter time preference position or the shutter time automatic adjusting position is selected for the shutter time setting means. The camera is...

A switch operating member is provided in an opening at the upper portion of a switch housing, and a rotary knob has a cylindrical portion arranged about the operating member. A restoring spring has one end thereof engaged with the switch housing and has its other end engaged with the rotary knob. Locking means are provided comprising a projection on the outer periphery of the operating member and an engaging portion on the cylindrical portion of the rotary knob, or vice versa. The operating memb...