Title:
制御メッセージ通信用に相互接続されたシステム
Document Type and Number:
Japanese Patent JP3611339
Kind Code:
B2
Abstract:
Apparatuses (1,2,3) of an audio/video system convey user commands to one another via a serial control bus (4). The user commands convey key activations on a remote handset (18a), whose keys include both "normal" keys such as "mute/unmute", and "repeat" keys such as "volume up" and "volume down". To convey a repeat key activation, a first control means (12) within one apparatus addresses a key activation message to a second control means (32) within another apparatus. The second control means (32) synthesises locally a repetitive series of user commands, until a key release message is received. The need for repetitive user command messages to be sent via the control bus is thereby eliminated, and the frequency of repetition can be defined locally to give consistent response to user commands. The second control means (32) can also implement a de-bouncing function, disregarding duplicate user command messages sent by a third apparatus (2) which also responds to the handset (18a).
More Like This:
Inventors:
Gel Ho Extra
Application Number:
JP19220393A
Publication Date:
January 19, 2005
Filing Date:
August 03, 1993
Export Citation:
Assignee:
D2B SYSTEMS COMPANY LIMITED
International Classes:
H04B1/20; H04N5/00; H04Q9/00; G11B15/02; (IPC1-7): H04Q9/00; G11B15/02; H04N5/00
Domestic Patent References:
| JP3132197A | ||||
| JP479622A | ||||
| JP63209296A |
Attorney, Agent or Firm:
Kosaku Sugimura