摘要:
In an electro-optical system for reading ultraviolet (UV) light-responsive indicia illuminated by a UV light beam having a wavelength shorter than visible light, safety techniques are described for reducing exposure to the UV light beam to within safe limits.
摘要:
Before a write and/or read access to one of the memory cells is carried out, a security information stored in a security memory cell is read out. If the security information is characterized by a first logic state an error signal is generated. If the read-out security information is characterized by a second logic state the memory cell is accessed and a write access is carried out to the security memory cell during which a new security information to be he stored having the second logic state is written to the cell.
摘要:
An electronic driver circuit for word lines in a memory matrix is described. The driver circuit has coded outputs of a driver source, in particular of a current/voltage source, which are switched through to selected word lines. In this context, the word lines are selected in blocks by a control signal, and the outputs of the driver source are connected thereto. The coding of the driver source then selects the respective active word line.
摘要:
Certain exemplary embodiments can provide a method, which can comprise a plurality of activities, which can comprise automatically detecting the presence of a bird in a housing. The housing can be adapted to substantially surround the bird. The housing can define an aperture adapted for the bird to enter and exit the housing.
摘要:
The invention relates to a multi-staged overvoltage protection circuit, in particular for information-technology systems, comprising at least one coarse protection element and at least one fine protection element, wherein the at least one fine protection element can be activated by a triggering device depending on a threshold. According to the invention, the applied operating voltage is led to an evaluation device, which generates a reference voltage. Also provided is an evaluation unit, firstly for checking to see whether the current operating voltage is above the reference voltage, secondly for checking to see whether the voltage excess exceeds a previously determined level, and thirdly for establishing whether the rate of change of the operating voltage is greater than another previously determined value so that a transient overvoltage exists, wherein the triggering device then receives an activation signal from the evaluation device.
摘要:
A system for processing output signals of an electro-optical scanner adapted for reading a bar code indicia having parts of different light reflectivity and non bar code indicia adjacent the bar code on an article being scanned comprises a decoder for decoding content of signals input thereto and signal processing circuitry for receiving the scanner output signals and generating input signals for input to the decoder by deleting signals having non bar code indicia content from the received scanner output signals by examining characteristics of the received scanner output signals. The signal processing circuitry is adapted to generate input signals for input to the decoder for bar code indicia of respective different bar code symbologies. The signal processing circuitry includes deletion circuitry for deleting, from the received scanner output signals, signals having less time duration than a predetermined time duration. The signal processing circuitry also includes one or both of first ratio computation means for computing a ratio of characteristics of adjacent of the received scanner output signals and second ratio computation means for computing a ratio of characteristics of non-adjacent of the received scanner output signals.
摘要:
Certain exemplary embodiments can provide a method, which can comprise a plurality of activities, which can comprise automatically detecting the presence of a bird in a housing. The housing can be adapted to substantially surround the bird. The housing can define an aperture adapted for the bird to enter and exit the housing.
摘要:
A system is provided for selecting a particular barcode on an item that includes multiple barcodes. The system (1) acquires, via a barcode imager, an image of the item within the field of view of the barcode imager, (2) analyzes the acquired image to determine a set of potential barcode fields, (3) determines, using a predetermined criterion (e.g., distance from center of imaged area, type of bar code, etc.), a candidate barcode field from among the set of potential barcode fields, (4) displays a modified image derived from the acquired image, wherein the candidate barcode field is identified within the modified image, and (5) allows the user to initiate a decode session when the candidate barcode field includes the desired barcode. The acquired may be modified to highlight the candidate barcode field in any number of ways, including, for example, superimposing an artificial reticule around the candidate field, superimposing an artificial scan line over the field, altering the contrast of the field, and/or altering the brightness of the field.
摘要:
A system and method are provided for reading at least one optical code, including an omnidirectional optical code scanner system for illuminating, scanning and decoding at least one optical code within a field of view of the scanning system and oriented in an orientation included in a set of multiple orientations. The scanner system includes an actuator assembly having circuitry for providing for user selection of a mode selected from the group of modes consisting of: an omnidirectional mode for performing a read operation for reading an optical code oriented in any orientation included in the set of multiple orientations, a restricted omnidirectional mode for performing a read operation for reading the optical code when oriented only in an orientation of a reduced set of the set of multiple orientations; and an aim mode for illuminating a target object and disrupting a corresponding read operation; and circuitry for generating a signal indicative of the mode selection. The scanner system further includes at least one processor for operating the scanning system in the selected mode in accordance with the signal indicative of the mode selection.