| (19) |
 |
|
(11) |
EP 0 392 658 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
25.09.1991 Bulletin 1991/39 |
| (43) |
Date of publication A2: |
|
17.10.1990 Bulletin 1990/42 |
| (22) |
Date of filing: 08.03.1990 |
|
| (51) |
International Patent Classification (IPC)5: G07F 17/32 |
|
| (84) |
Designated Contracting States: |
|
DE ES FR GB |
| (30) |
Priority: |
13.04.1989 US 337324
|
| (71) |
Applicant: MIDWAY MANUFACTURING COMPANY |
|
Chicago,
Illinois 60618 (US) |
|
| (72) |
Inventor: |
|
- Poole,David L.
Libertyville
Illinois 60048 (US)
|
| (74) |
Representative: Allman, Peter John et al |
|
MARKS & CLERK,
Sussex House,
83-85 Mosley Street
Manchester M2 3LG
Manchester M2 3LG (GB) |
|
| |
|
| (54) |
Control circuit for coin operated amusement games |
(57) The cost and complexity of connecting electrically actuated devices to a game control
microprocessor in a coin operated amusement game can be reduced by utilizing a standard
control assembly including a memory element for each of the devices and where a control
circuit is used to connect the assemblies in series with the microprocessor. Data
and clock lines in the control circuit are used to transmit control signals to the
devices and the control circuit can additionally include power supply lines and a
ground line. A similar arrangement can be used to transport data representing the
status of game operated switches to the microprocessor.