GB1345328A - Push-button keyboard apparatus - Google Patents
Push-button keyboard apparatusInfo
- Publication number
- GB1345328A GB1345328A GB1345328DA GB1345328A GB 1345328 A GB1345328 A GB 1345328A GB 1345328D A GB1345328D A GB 1345328DA GB 1345328 A GB1345328 A GB 1345328A
- Authority
- GB
- United Kingdom
- Prior art keywords
- buttons
- button
- numeral
- symbols
- extra
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/23—Construction or mounting of dials or of equivalent devices; Means for facilitating the use thereof
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Telephone Set Structure (AREA)
- Input From Keyboards Or The Like (AREA)
Abstract
1345328 Automatic exchange equipment; number sending devices GENERAL ELECTRIC CO Ltd 14 Dec 1971 [14 Dec 1970] 59216/70 Heading H4K A push button telephone set having 10 numeral buttons and two extra buttons is used for data signalling by having each numeral button associated also with three-non-numerical symbols which can be selected for transmission by operating one or both of the extra buttons prior to operation of the numeral button. The extra buttons are visually marked so that it is clear which should be operated to transmit a particular symbol. As shown the button 11 only allows the contents of the bottom row of the numeral buttons to subsequently be sent and button 12 selects the right hand column symbols for transmission. An additional two symbols can be obtained on buttons 11 and 12, Fig. 2, (not shown). The set transmits the data as two voice frequency tones in a one out of four code for each, so explained in Specification 854,375. The keyboard includes the mechanism disclosed in Specification 1,124,535.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5921670 | 1971-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1345328A true GB1345328A (en) | 1974-01-30 |
Family
ID=10483307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1345328D Expired GB1345328A (en) | 1971-12-14 | 1971-12-14 | Push-button keyboard apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1345328A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2147769A (en) * | 1983-10-08 | 1985-05-15 | Hashimoto Corp | Information transmission/reception system using pushphone and information reception apparatus |
| US4532378A (en) * | 1981-05-28 | 1985-07-30 | Tokyo Shibaura Denki Kabushiki Kaisha | Telephone apparatus capable of inputting character data |
| US4567326A (en) * | 1981-05-28 | 1986-01-28 | Tokyo Shibaura Denki Kabushiki Kaisha | Telephone apparatus for selective operation in a normal and repertory dial mode |
| GB2178927A (en) * | 1985-07-09 | 1987-02-18 | Canon Kk | Alphanumeric character transmission |
-
1971
- 1971-12-14 GB GB1345328D patent/GB1345328A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4532378A (en) * | 1981-05-28 | 1985-07-30 | Tokyo Shibaura Denki Kabushiki Kaisha | Telephone apparatus capable of inputting character data |
| US4567326A (en) * | 1981-05-28 | 1986-01-28 | Tokyo Shibaura Denki Kabushiki Kaisha | Telephone apparatus for selective operation in a normal and repertory dial mode |
| GB2147769A (en) * | 1983-10-08 | 1985-05-15 | Hashimoto Corp | Information transmission/reception system using pushphone and information reception apparatus |
| GB2178927A (en) * | 1985-07-09 | 1987-02-18 | Canon Kk | Alphanumeric character transmission |
| GB2178927B (en) * | 1985-07-09 | 1990-02-21 | Canon Kk | Communication apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |