US Patent: 3,175,138
|
| Digital to Analog Decoder
|
|
Patentees:
|
| Henry P. Kilroy (exact or similar names) - Littleton, Middlesex County, MA |
| James O. McDonough (exact or similar names) - Concord, Middlesex County, MA |
| John O. Morin (exact or similar names) - Bedford, Middlesex County, MA |
| USPTO Classifications: |
|
318/255, 318/569, 318/593, 318/594, 318/604, 318/605, 318/608, 318/632, 327/12, 327/6, 341/117, 377/109
|
| Manufacturer: |
| Not known to have been produced |
|
|
Patent Dates:
|
| Applied: |
Feb. 09, 1960 |
| Granted: |
Mar. 23, 1965 |
USPTO (New site tip)
Google Patents
Report data errors or omissions to steward
Joel Havens
"Vintage Machinery" entry for Giddings & Lewis Manufacturing Co.
|
|
Description: |
| Claim:
Our invention relates generally to digitally controlled servomechanism and to novel apparatus for converting electrical signals containing information in digital form to corresponding analog signals. Apparatus which can accomplish this conversion will be referred to herein and in the claims as a "decoder." Our invention relates particularly to a system having a decoder in which the information contained in the digital signal appears, in analog form, as the relative phase of a pair of periodically varying electrical signals. Our invention further relates to digitally controlled servomechanisms utilizing our improved decoder for converting digital command signals to analog command signals for use by the servomechanism. As will be pointed out more fully below, our device is particularly applicable to servomechanisms which are required to position the member controlled by the servomechanism at a number of different commanded positions, the path traversed by the controlled member of the servomechanism in reaching these positions being unimportant to the operation of the device. |
|
