| 6015091 |
System for reading bar code symbols using portable bar code symbol readers having one-way RF signal transmission links with base stations |
George B. Rockstein, David M. Wilz, Sr., Stephen J. Colavito, Carl Harry Knowles |
2000-01-18 |
| 5979766 |
Bar code symbol reading system having one-way RF signal-receiving keyboard wedge interface |
George B. Rockstein, David M. Wilz, Sr., Stephen J. Colavito, Carl Harry Knowles |
1999-11-09 |
| 5939701 |
Bar code symbol reading system having cordless bar code symbol reader and portable base unit with data collection memory and acoustical acknowledgment signal generator |
George B. Rockstein, David M. Wilz, Sr., Stephen J. Colavito, Carl Harry Knowles |
1999-08-17 |
| 5929419 |
System and method for preventing authorized movement of cordless bar code symbol readers from designated scanning environments |
George B. Rockstein, David M. Wilz, Sr., Stephen J. Colavito, Carl Harry Knowles |
1999-07-27 |
| 5844229 |
Cordless desktop bar code symbol reader having integrated viewing aperture for sighting of bar code symbols to be scanned |
George B. Rockstein, David M. Wilz, Sr., Stephen J. Colavito, Carl Harry Knowles |
1998-12-01 |
| 5811786 |
PCMCIA card providing base unit for one-way RF signal reception and acoustic acknowledgment signal generation |
George B. Rockstein, David M. Wilz, Sr., Stephen J. Colavito, Carl Harry Knowles |
1998-09-22 |
| 5808285 |
Portable code symbol reading device with one-way wireless data packet transmission link to base unit employing condition-dependent acoustical signalling for data packet reception acknowledgement |
George B. Rockstein, David M. Wilz, Sr., Stephen J. Colavito, Carl Harry Knowles |
1998-09-15 |