公开(公告)号：CA2186923A1

公开(公告)日：1997-04-28

申请号：CA2186923

申请日：1996-10-01

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： PINARD PATRICK ,  HEIMAN FREDERIC

IPC: G06K7/00 ,  G06K17/00 ,  H04B1/707 ,  H04B1/713 ,  H04B1/7156 ,  H04L5/14 ,  H04L12/28 ,  H04L12/56 ,  H04W48/16 ,  H04W48/20 ,  H04W84/12 ,  H04W88/06 ,  H04Q7/36 ,  H04Q7/32

Abstract: A communications network comprising a cellular local area wireless network includes a plurality of access points connected to a housed computer and each other, and a plurality of mobile units each mobile unit being arranged for association with an access point. The mobile units are arranged to periodically scan for and identify the most eligible access point for association on the basis of the criteria of best quality signal strength and loading factor. In order to identify when mobile units are being removed from a predetermined area, access points having directional antennae are situated adjacent exit points to detect when mobile units are in a vicinity.

公开(公告)号：CA2166508A1

公开(公告)日：1996-08-02

申请号：CA2166508

申请日：1996-01-03

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： BARD SIMON ,  KATZ JOSEPH ,  HEIMAN FREDERIC ,  BARKAN EDWARD ,  DVORKIS PAUL ,  SWARTZ JEROME ,  METLITSKY BORIS ,  STERN MIKLOS ,  KRICHEVER MARK ,  DEVITA JOSEPH ,  SEARLE DON ,  MAIMAN MITCHELL ,  MCDONALD JAY ,  POTTER JOHN ,  CHOW GONZAGA JOSEPH

IPC: G04B37/00 ,  G04B47/00 ,  G06F1/16 ,  G06F3/0346 ,  G06K7/10 ,  G06V30/224 ,  H04N1/028 ,  G06K9/36

Abstract: An optical scanning system for reading indicia of differing light reflectivity has an optical scan module (1) which is adapted to be mounted on a finger of a user. A first peripheral module (7), preferably in the form of a wrist watch, has a receiver (920) which detects the reflected light. A second peripheral module (9), mounted on the other arm of the user, communicates with the first module by radio frequency transmission. According to other aspects of the invention, the light detector may be mounted in a housing which is separate and apart from the optical scan module. According to another aspect, a laser pointer or scanner is mounted to a ring (1) which is arranged to be worn on a single finger of the user.

公开(公告)号：CA2564287C

公开(公告)日：2010-08-24

申请号：CA2564287

申请日：1997-10-15

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： HEIMAN FREDERIC ,  PINARD PATRICK ,  WERBACK ANDREW ,  SHIBA MICHAEL ,  BEACH ROBERT

IPC: H04L12/28 ,  H04L12/54

Abstract: A wireless communications network comprising a mobile unit and a base unit, a first one of said units being arranged to transmit a message to a second one of said units, said message having associated with it a coded portion representative of possible responses to the message, and said second unit being arranged to decode said coded portion and to offer to a user a plurality of options corresponding to said possible responses.

公开(公告)号：CA2218268C

公开(公告)日：2007-01-16

申请号：CA2218268

申请日：1997-10-15

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： PINARD PATRICK ,  WERBACK ANDREW ,  SHIBA MICHAEL ,  BEACH ROBERT ,  HEIMAN FREDERIC

IPC: H04Q7/22 ,  H04L12/28 ,  H04Q7/32

Abstract: A communication network comprising a cellular local area wireless netwo rk includes a plurality of access points connected to a housed computer and eac h other, and a plurality of mobile units each mobile unit being arranged for association with an access point. The mobile units are arranged to periodically scan for and identify t he most eligible access point for association on the basis of the criteria of best quality signal strength and loading factor. In order to identify when mobile units are bein g removed from a predetermined area, access points having directional antennae are situated adjacent exit points to detect when mobile units are in a vicinity. Each mobile unit may include paging facilities, including the capability of transmitting information in a coded form known both to the unit and to a host, and power-saving facilities.

公开(公告)号：DE68928690D1

公开(公告)日：1998-07-09

申请号：DE68928690

申请日：1989-07-19

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： HEIMAN FREDERIC ,  SPITZ GLENN

IPC: G06K7/10

公开(公告)号：CA2218268A1

公开(公告)日：1998-05-08

申请号：CA2218268

申请日：1997-10-15

Applicant: SYMBOL TECHNOLOGIES INC

Inventor： PINARD PATRICK ,  BEACH ROBERT ,  WERBACK ANDREW ,  HEIMAN FREDERIC ,  SHIBA MICHAEL

IPC: H04L12/28 ,  H04Q7/22 ,  H04Q7/32

Abstract: A communications network comprising a cellular local area wireless network includes a plurality of access points connected to a housed computer and each other, and a plurality of mobile units each mobile unit being arranged for association with an access point. The mobile units are arranged to periodically scan for and identify the most eligible access point for association on the basis of the criteria of best quality signal strength and loading factor. In order to identify when mobile units are being removed from a predetermined area, access points having directional antennae are situated adjacent exit points to detect when mobile units are in a vicinity. Each mobile unit may include paging facilities, including the capability of transmitting information in a coded form known both to the unit and to a host, and power-saving facilities.