摘要:
An automatically-activated bar code reading system including: a visible laser light source, scanning element and a plurality of stationary mirrors. When arranged in a first configuration, the visible laser light source, scanning element and plurality of stationary mirrors cooperate to produce a visible omni-directional laser scanning pattern with multiple laser scanning lines having substantially uniform spatial and temporal intensity characteristics at a given scanning plane parallel to a scanning window within a working distance of the system. When the visible laser light source, the scanning element and the plurality of stationary mirrors are arranged in a second configuration, these components cooperate to produce a visible omni-directional laser scanning pattern having temporally varying intensity characteristics, against a single visible laser scanning line having substantially uniform spatial and temporal intensity characteristics, at a given scanning plane parallel to the scanning window within the working distance of the system.
摘要:
A multi-mode laser-based bar code symbol reading device having a hand-supportable housing with a light transmission aperture, wherethrough visible light can exit and enter the hand-supportable housing. A laser scanning engine, disposed within the hand-supportable housing, is controlled to selectively operate in either an omni-directional reading mode or a uni-directional bar code reading mode. In the omni-directional bar code reading mode, the laser scanning engine projects pattern through the light transmission aperture, an omni-directional laser scanning pattern producing multiple laser scanning lines with substantially uniform spatial and temporal intensity characteristics at any given scanning plane parallel to the light transmission aperture within the working distance of the system, and detects and decodes bar code symbols on objects passing through the omni-directional scanning pattern, and produces symbol character data representative of decoded bar code symbols. In the uni-directional bar code reading mode, the laser scanning engine projects through the light transmission aperture, a visible stroboscopically-pulsed omni-directional laser scanning pattern, against a single laser scanning line having substantially uniform spatial and temporal intensity characteristics at any given scanning plane parallel to the light transmission aperture within the working distance of the system, and detects and decodes bar code symbols on objects passing through the single laser scanning line, and produces symbol character data representative of decoded bar code symbols. A manually-actuatable data transmission switch, integrated with said hand-supportable housing, produces an activation signal in response to the manual-actuation of the data transmission switch. A data transmission subsystem, disposed in the hand-supportable housing, operates under control of control circuitry to communicate the symbol character data produced by the laser scanning engine to a host device operably coupled to the bar code symbol reading device. The control circuitry enables communication of symbol character data produced by the laser scanning engine in the uni-directional bar code reading mode of operation to the host device in response to the activation signal produced by the data transmission switch, and the control circuitry enables communication of symbol character data produced by the laser scanning engine in the omni-directional reading mode of operation to the host device irrespective of the activation signal produced by the data transmission switch.
摘要:
A multi-mode laser-based bar code symbol reading device having a hand-supportable housing with a light transmission aperture, wherethrough visible light can exit and enter the hand-supportable housing. A laser scanning engine, disposed within the hand-supportable housing, is controlled to selectively operate in either an omni-directional reading mode or a uni-directional bar code reading mode. In the omni-directional bar code reading mode, the laser scanning engine projects pattern through the light transmission aperture, an omni-directional laser scanning pattern producing multiple laser scanning lines with substantially uniform spatial and temporal intensity characteristics at any given scanning plane parallel to the light transmission aperture within the working distance of the system, and detects and decodes bar code symbols on objects passing through the omni-directional scanning pattern, and produces symbol character data representative of decoded bar code symbols. In the uni-directional bar code reading mode, the laser scanning engine projects through the light transmission aperture, a visible stroboscopically-pulsed omni-directional laser scanning pattern, against a single laser scanning line having substantially uniform spatial and temporal intensity characteristics at any given scanning plane parallel to the light transmission aperture within the working distance of the system, and detects and decodes bar code symbols on objects passing through the single laser scanning line, and produces symbol character data representative of decoded bar code symbols. A manually-actuatable data transmission switch, integrated with said hand-supportable housing, produces an activation signal in response to the manual-actuation of the data transmission switch. A data transmission subsystem, disposed in the hand-supportable housing, operates under control of control circuitry to communicate the symbol character data produced by the laser scanning engine to a host device operably coupled to the bar code symbol reading device. The control circuitry enables communication of symbol character data produced by the laser scanning engine in the uni-directional bar code reading mode of operation to the host device in response to the activation signal produced by the data transmission switch, and the control circuitry enables communication of symbol character data produced by the laser scanning engine in the omni-directional reading mode of operation to the host device irrespective of the activation signal produced by the data transmission switch.
摘要:
A multi-mode laser-based bar code symbol reading device having a hand-supportable housing with a light transmission aperture, wherethrough visible light can exit and enter the hand-supportable housing. A laser scanning engine, disposed within the hand-supportable housing, is controlled to selectively operate in either an omni-directional scanning mode or a single line scanning mode. In the omni-directional scanning mode, the laser scanning engine projects an omni-directional scanning pattern through the light transmission aperture, detects and decodes bar code symbols on objects passing through the omni-directional scanning pattern, and produces symbol character data representative of decoded bar code symbols. In the rastered scanning mode, the laser scanning engine projects rastered scanning pattern through the light transmission aperture and detects and decodes bar code symbols on objects passing through the single line scanning pattern, and produces symbol character data representative of decoded bar code symbols. In the single-line scanning mode, the laser scanning engine projects a single line scanning pattern through the light transmission aperture and detects and decodes bar code symbols on objects passing through the single line scanning pattern, and produces symbol character data representative of decoded bar code symbols. A manually-actuatable data transmission switch, integrated with said hand-supportable housing, produces an activation signal in response to the manual-actuation of the data transmission switch. A data transmission subsystem, disposed in the hand-supportable housing, operates under control of control circuitry to communicate the symbol character data produced by the laser scanning engine to a host device operably coupled to the bar code symbol reading device. The control circuitry enables communication of symbol character data produced by the laser scanning engine in the single line or rastered scanning mode of operation to the host device in response to the activation signal produced by the data transmission switch, and the control circuitry enables communication of symbol character data produced by the laser scanning engine in the omni-directional scanning mode of operation to the host device irrespective of the activation signal produced by the data transmission switch.
摘要:
A hand-supportable bar code symbol reading device having a laser scanning engine that is controlled to selectively operate in either an omni-directional scan mode or a single line scan mode. In the single line scan mode of operation, symbol character data produced by the laser scanning engine is communicated to a host device in response to an activation signal produced by a data transmission switch. In the omni-directional scan mode, symbol character data is communicated to the host device irrespective of the activation signal. Preferably, mode selection means selectively operates the laser scanning engine in either the omni-directional scan mode of operation or the single line scan mode of operation in response to placement of the device in a support stand, thereby enabling automatic operation as a stationary hands-free omni-directional projection scanner (in stand), and automatic operation as a portable hand-held line scanner (out of stand).
摘要:
A hand-supportable bar code symbol reading device having a laser scanning engine that is controlled to selectively operate in either an omni-directional scan mode or a single line scan mode. In the single line scan mode of operation, symbol character data produced by the laser scanning engine is communicated to a host device in response to an activation signal produced by a data transmission switch. In the omni-directional scan mode, symbol character data is communicated to the host device irrespective of the activation signal. Preferably, mode selection means selectively operates the laser scanning engine in either the omni-directional scan mode of operation or the single line scan mode of operation in response to placement of the device in a support stand, thereby enabling automatic operation as a stationary hands-free omni-directional projection scanner (in stand), and automatic operation as a portable hand-held line scanner (out of stand).
摘要:
A hand-supportable bar code symbol reading device having a laser scanning engine that is controlled to selectively operate in either an omni-directional scan mode or a single line scan mode. In the single line scan mode of operation, symbol character data produced by the laser scanning engine is communicated to a host device in response to an activation signal produced by a data transmission switch. In the omni-directional scan mode, symbol character data is communicated to the host device irrespective of the activation signal. Preferably, mode selection means selectively operates the laser scanning engine in either the omni-directional scan mode of operation or the single line scan mode of operation in response to placement of the device in a support stand, thereby enabling automatic operation as a stationary hands-free omni-directional projection scanner (in stand), and automatic operation as a portable hand-held line scanner (out of stand).
摘要:
A system for indicating the presence of a substance in an article, wherein the article comprises at least one component, comprises: means for selecting a substance; a component data unit for providing component data wherein the component data comprises at least one material comprised in each component; a primary material records unit for providing a plurality of primary material records; a secondary material records unit for providing a plurality of secondary material records; a substance record unit for providing a plurality of substance records associated with a material, wherein each substance record contains percentages of substances contained in the associated material; and a processor configured to: select material records of the at least one material from the primary material records unit if the at least one material is present in the primary material records; select material records corresponding to the at least one material from the secondary material records unit if no substance records associated with the at least one material are present in the substance record unit; calculate the total amount of the selected substance present in the article based on the component data, selected material records, and substance records, and provide an indication of the total amount of the selected substance.
摘要:
The invention provides tetraalkyl ammonium fluoride derivatives or a pyridine hydrogen fluoride complex to remove silyl protecting groups in oligoribonucleotides synthesis.
摘要:
An improved process for removal of particulate matter having airborne potential. The process includes applying a foam to the particulate matter in a particulate matter area to prevent the particulate matter from becoming airborne. The particulate matter area may then be removed, prior to the foam draining, and encased in a storage device.