公开(公告)号：JP2001313658A

公开(公告)日：2001-11-09

申请号：JP2001077770

申请日：2001-03-19

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BEACH ROBERT

IPC: H04B7/26 ,  H04L12/28 ,  H04L12/44 ,  H04L12/46 ,  H04L12/56 ,  H04W60/00 ,  H04W74/00 ,  H04W84/12

Abstract: PROBLEM TO BE SOLVED: To provide a communication apparatus about a wireless data communi cation network, using wireless data communication between a mobile data processing unit and a central computer. SOLUTION: This wireless local area network includes a simplified RF port formed so as to be provided with a low level medium access control function. A higher level media access control function is provided in a cell controller and may be operated as one or more RF ports. A mobile unit can also be configured by being provided with the higher level media access control function to be executed in a host processor.

公开(公告)号：JPH11341532A

公开(公告)日：1999-12-10

申请号：JP894199

申请日：1999-01-18

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： SWARTZ JEROME ,  HEIMAN FRED P ,  MCGLYNN DANIEL R ,  BEACH ROBERT

IPC: H04Q3/58 ,  G06K17/00 ,  G06Q20/34 ,  G06Q30/02 ,  G06Q30/06 ,  G06Q99/00 ,  G07F7/00 ,  G07F7/02 ,  G07F7/10 ,  G07G1/00 ,  G07G1/14 ,  H04B7/26 ,  H04L12/28 ,  H04L12/56 ,  H04M1/253 ,  H04M1/57 ,  H04M1/663 ,  H04M1/725 ,  H04M3/00 ,  H04M3/38 ,  H04M3/42 ,  H04M3/533 ,  H04M7/12 ,  H04W92/02

Abstract: PROBLEM TO BE SOLVED: To obtain the improved data communication system that connects a wireless LAN or a WAN to a PBX by setting up communication between a terminal and the PBX through 1st and 2nd radio channels and a bridge. SOLUTION: Communication between a terminal and a PBX is set up through 1st and 2nd radio channels and a bridge. For example, in a system where a LAN 670 connects to an Ethernet on a WAN 650 through a host interface unit HIU 600, the HIU 600 conducts a routing function, that is, a bridging function between the LAN 670 and the WAN 650. The PBX 630 is located on the WAN 650 and communication only with devices at the outside of the LAN 670 is sent to the WAN 650 through the HIU 600. Furthermore, other network than the LAN 670 such as a LAN 680 or a WAN 690 and a device such as a server 640 are connected to the WAN 650 to make communication with the PBX 630.

公开(公告)号：JPH11312209A

公开(公告)日：1999-11-09

申请号：JP7595399

申请日：1999-03-19

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： DVORKIS PAUL ,  BARKAN EDWARD ,  SHEPARD HOWARD ,  GIORDANO JOESEPH ,  GOFMAN YURI ,  DORAN ROBERT ,  BARILE JOHN ,  GROSFELD HENRY ,  KORENSHTEIN AVI ,  CHERNIN OPHIR ,  CORDES KEVIN ,  MAIMAN MITCH ,  WALLACE PATRICK

IPC: G06K7/10

Abstract: PROBLEM TO BE SOLVED: To provide an inexpensive and rugged scanner which can be easily replaced with another by preparing an optical module and a PCB(printed circuit board) having a stationary electric connector, which is attachably connected to a coupler that electrically connects the optical module fixed to the PCB to the PCB. SOLUTION: An optical module and a PCB 212 are prepared. The optical module includes an optical scanner 206 which scans a mark to be read, an optical detector which detects the light reflected from the mark that is currently read and also supplies the data signal shown by the mark and a movable electric coupler. The PCB 212 has a stationary electric connector which is attachably connected to a coupler that is fixed to the PCB 212 and electrically connects the optical module to the PCB 212, and contains an electric circuit fixed to the PCB 212 for control of the optical module. The electric circuit prepared on the PCB 212 includes a drive device that drives the scanner 206.

公开(公告)号：JPH1041838A

公开(公告)日：1998-02-13

申请号：JP10073097

申请日：1997-03-13

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： VU HOAI X ,  VU TOAN

IPC: H03G3/20 ,  H03G3/30 ,  H03K3/03 ,  H04B1/16 ,  H04B1/26 ,  H04B1/40 ,  H04B1/44

Abstract: PROBLEM TO BE SOLVED: To provide a transceiver having a transmitter section and a receiver section by forming a modulator and a down converter on a single semiconductor body. SOLUTION: A transmitter section 12 and a receiver section 14 are formed on a single semiconductor body 51. The section 12 is provided with a modulator 22, transmission channel selector 24, frequency multiplier 26 and power amplifier 28, and the modulator 22 superimposes information from a microprocessor 18 onto the amplitude of any suitable radio-frequency carrier wave signal such as a microwave-frequency carrier wave signal. Moreover, the section 14 is provided with a low-noise amplifier 40, down converter 42 (equipped with a sample/hold circuit 43 and a low-pass filter 45), receiver channel selector 46, rough AGC circuit 48 and digital signal processor 50. The processor 50 performs automatic gain control and the amplitude adjustment of the digital signal, corresponding to the output of a demodulator 56.

公开(公告)号：JPH07200718A

公开(公告)日：1995-08-04

申请号：JP28195194

申请日：1994-11-16

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： JIEROOMU SUUOOTSU ,  YAAIYUN RII ,  POORU DOBUOOKISU ,  GUREN SUPITSUTSU

IPC: G06K7/10 ,  G06K7/14

Abstract: PURPOSE: To provide a new method reading a two-dimensional bar code symbol through the use of a few light sources and mechanically simple structure. CONSTITUTION: This method simultaneously illuminates the plural areas of the different light reflectance in the bar code symbol by using a laser luminous flux 12 with a thin and long cross section. In order that the two-dimensional area of the symbol is illuminated with the lapse of time, the laser luminous flux 12 is swept on the symbol in the crossing direction of the thin and long size of an illuminated area until the symbol is read. Reflected light from the illuminated area of the symbol is image-formed on a linear sensor array. After then the sensor array is scanned to generate an electric signal expressing the spatial intensity difference of light image-formed along the linear path within a viewing range.

公开(公告)号：JPH06274670A

公开(公告)日：1994-09-30

申请号：JP1338194

申请日：1994-02-07

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： METLITSKY BORIS ,  DVORKIS PAUL ,  BARKAN EDWARD

IPC: G06K7/00 ,  G06K7/10

Abstract: PURPOSE: To provide an intelligent fixation device which converts a single straight-line scanning pattern emitted by a hand-held scanner into an all- directional scanning pattern consisting of crossing scanning lines. CONSTITUTION: A trigger-operated or triggerless scanner 10 reads a bar code symbol out with a 1st scanning pattern at a 1st attitude where the scanner is held in a hand and used. The intelligent fixation device 110 supports the scanner 10 selectively as a hand-free work station and the scanner 10 is merely fitted to the fixation device 110 to converts the 1st scanning pattern into a 2nd different scanning pattern. The scanner 10 reads the bar code symbol out at a 2nd attitude where this work station is used. The scanner 10 is equipped with a signal processing digital circuit so as to reconstitute the bar code symbol faithfully and digitally.

公开(公告)号：JPH06187481A

公开(公告)日：1994-07-08

申请号：JP16165393

申请日：1993-06-30

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： ROSA RALPH ,  GREENROSE JAY ,  BEZALEL MENASHE ,  DVORKIS PAUL ,  BARKAN EDWARD ,  BARKAN CHRISTINE

IPC: G06K7/00 ,  G06K5/00 ,  G06K7/10 ,  G06K7/14 ,  G06K19/06

Abstract: PURPOSE: To provide a method for reading a bar code which is encoded by the relative width of one or both of bars and spaces and by the relative height of the bar by scanning with long laser beams across the bar code which is height-modulated or width-modulated. CONSTITUTION: The bar code is scanned by a light source generating almost oval illumination spot 200. The bar code may be a height modulation code (A) or a width modulation code (B). The intensity of light reflected from the bar code changes when the illumination spot crosses the bar code. When the illumination spot 200 crosses the spaces (205'), reflected light intensity reaches a maximum value and it reduces when it crosses a short bar [205" of (A)] or a fine bar [205" of (B)]. Reflected light intensity reaches a minimum value when it crosses the long bar [205"' of (A)] or the thick bar [205"' of (B)]. Consequently, it is clear that the patterns of (A) and (B) become the patterns of reflected light intensity and they can be decoded.

公开(公告)号：JPH05205085A

公开(公告)日：1993-08-13

申请号：JP17314692

申请日：1992-06-30

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： YUUJIIN BAANAADO JIYOSEFU ,  SEODOJIOSU PABURIDEISU

IPC: G06K7/00 ,  G06K7/14

Abstract: PURPOSE: To provide an analog waveform decoder which can surely and efficiently decode high-density bar code symbols. CONSTITUTION: Software executed in the analog waveform decoder discriminates a decodable part of an analog waveform first. Then, the decodable part is processed to obtain plural waveform descriptors defining the decodable part. Then, a high-density decoding process is performed for one or more of the waveform descriptors to generate a 1st decoded signal representing information included in the high-density bar code symbols. In case of a failure in the decoding process, an undecoded signal is generated. According to the undecoded signal, a low-density processing is performed to generate a 2nd decoded signal representing information included in low-density symbols. One of the 1st and 2nd decoded signals is outputted from the analog waveform decoder.

公开(公告)号：JPH05189590A

公开(公告)日：1993-07-30

申请号：JP16327692

申请日：1992-06-23

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： EDOWAADO BAAKAN ,  DEIBUITSUDO PII GOOREN ,  JIYOSEFU KATSUTSU ,  YAAYUN RII ,  JIEROOMU SUUOOTSU ,  TOOMASU MATSUZU

IPC: G06K7/015 ,  G06K7/10 ,  G06K7/14

Abstract: PURPOSE: To easily read bar codes having various densities by operation angles in a wide range. CONSTITUTION: Light emitting elements 61 and 62, a photodetection element 63, and a related circuit network are so arranged that two data channels are obtained from a scanned bar code. Two channels have different resolutions. Data of two channels are analyzed to obtain one decoded result. Though the operation angle and the density of the bar code are changed, at least one of two channels having different resolutions must be suitable for detection of the whole or most of bar code data. Data of the channel which generates the correct result can be used as it is. Even if two channels don't generate correct results by themselves, data of each channel is analyzed, and correct parts of their data are combined to generate one correct decoded result.

公开(公告)号：JPH05143762A

公开(公告)日：1993-06-11

申请号：JP11649692

申请日：1992-05-11

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BORISU METORITSUKII ,  MAAKU KURITSUSHIEBAA ,  EDOWAADO BAAKAN ,  HAWAADO SHIEPAADO ,  JIEROOMU SUUOOTSU ,  JIYOSEFU SANDOO

IPC: G06K7/10 ,  G07F7/02 ,  G07G1/00

Abstract: PURPOSE: To use this device in various modes such as hand holding and arm holding by constituting a scanning module by fixing constituting members except a mirror to a common assembly, and fixing it to each kind of housing so as to be converted. CONSTITUTION: A scanner 10 is provided with a hand type housing 12 whose inside part is divided into an upper half 16 and a lower half 18 by a base 14. A high speed scanning motor 20 is set on the base 14, an U-shaped supporting body 26 is fixed to an output axial part 22 instead of a plane mirror, a laser 1 optical part assembly 28 is fixed to the supporting body 26, and the assembly 28 and the supporting body 26 are shaken and rotated altogether by the axial part 22. The assembly 28 is provided with a hollow slender tube 30, laser diode 32 fixed to one end, lens barrel 34 fixed to the other end, and focusing lens held in the lens barrel 34. An opening through-diaphragm is provided at the end wall of the lens barrel 34, and the lens barrel 34 is fixed in nest type so as to be moved in a vertical direction in the tube 30.