JPS6464055A - Information transmission equipment - Google Patents
Information transmission equipmentInfo
- Publication number
- JPS6464055A JPS6464055A JP62221340A JP22134087A JPS6464055A JP S6464055 A JPS6464055 A JP S6464055A JP 62221340 A JP62221340 A JP 62221340A JP 22134087 A JP22134087 A JP 22134087A JP S6464055 A JPS6464055 A JP S6464055A
- Authority
- JP
- Japan
- Prior art keywords
- application program
- storing
- rom
- eeprom
- cpu
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Stored Programmes (AREA)
- Information Transfer Between Computers (AREA)
- Computer And Data Communications (AREA)
Abstract
PURPOSE:To easily improve the function of a system, by using a main ROM of a terminal equipment and also a memory means storing an application program and changing the contents of the memory means via a transmission line. CONSTITUTION:A CPU 4 which performs the communication control provided along with a CPU 6 which controls the application level, a ROM 5 which decided the communication procedure, and a ROM 7 containing an application program. Furthermore the interfaces 11 and 12 are added to the outside. These terminal equipments are connected to a transmission line via an electrical interface 3. While an EEPROM 8 storing an application program and a write controller 10 are provided. When a function is changed at an application level, the write data is separated from the normal data and transmitted. Thus the EEPROM 8 storing the application program is rewritten into a new program.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62221340A JPS6464055A (en) | 1987-09-04 | 1987-09-04 | Information transmission equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62221340A JPS6464055A (en) | 1987-09-04 | 1987-09-04 | Information transmission equipment |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6464055A true JPS6464055A (en) | 1989-03-09 |
Family
ID=16765272
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62221340A Pending JPS6464055A (en) | 1987-09-04 | 1987-09-04 | Information transmission equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6464055A (en) |
-
1987
- 1987-09-04 JP JP62221340A patent/JPS6464055A/en active Pending
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