Title:
WAVEFORM DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP3460368
Kind Code:
B2
Abstract:
PURPOSE: To verify the digital data processing on a TV screen and to simplify a verification system with use of a waveform display device in which the calculation result of the digital data fetched into a CPU is visualized (graphed), then converted into the TV video signals and displayed on the TV screen.
CONSTITUTION: The digital signals obtained by an A/D converter 2 undergo the digital signal processing through a data processing circuit 4. The data under the digital signal processing are fetched into a CPU 11 via a CPU interface circuit 10. The CPU 11 turns these data into a graph, and the bit map data on this graph are recorded into a RAM 12. Then the bit map data are converted into the analog signals by a D/A converter 6, and these analog signals are converted into the TV video signals by a TV encoding circuit 5. The TV video signals are outputted to a TV via a video signal output terminal 15, and the graph that is produced by the CPU 11 is displayed on the TV screen.
Inventors:
Hiroki Kadota
Masahito Yamaoka
Masahito Yamaoka
Application Number:
JP8387795A
Publication Date:
October 27, 2003
Filing Date:
April 10, 1995
Export Citation:
Assignee:
Matsushita Electric Industrial Co., Ltd
International Classes:
H04N17/00; H04N17/04; (IPC1-7): H04N17/00
Domestic Patent References:
| JP4305161A | ||||
| JP385458A |
Attorney, Agent or Firm:
Fumio Iwahashi (2 others)