Telephone and demodulator

Details Telephone and demodulator Telephone and demodulator

1987-04-13

1989-06-13

Ng, Jin F.

Telephonic communications

Telephone line or system combined with diverse electrical...

Having transmission of a digital message signal over a...

379 98, 379216, 379354, 379355, H04M 1100, H04M 342, H04M 100

Patent

active

048399191

DESCRIPTION:

BRIEF SUMMARY
The present invention refers to a telephone provided with a data processing capability that permits it to execute functions that go far beyond those of what is commonly understood by the term telephone.
The informatics and telephoning arts have undergone constant technical development during the last decade which have lead to the development of large scale computers and data banks that are now available to the public which may access them over telephone lines with the assistance of micro- or mini computers which, in general, require a certain knowledge of computers.
In spite of the enormous technological development that has taken place during recent years, it is a fact that the telephone as invented by Graham Bell has not really advanced beyond its basic function to effect normal telephone connections in spite of a limited number of electronically unsophisticated incrementations, such as built-in memories, re-dial functions and the like. Thus little direct use has been made of an apparently simple telephone set to take advantage of the universal communications that are possible using normal utility telephone lines except, of course, for connections between two points.
The object of the present invention therefore is to provide a telephone that is virtually as simple to use as a conventional set, that has the appearance of a conventional set and is within the price range of the general public but which, at the same time, has data processing capabilities that permits it to execute functions which would normally require a micro- or mini computer in addition to the set.
According to the present invention a telephone comprising a handset and an apparatus for receiving the handset, is characterized in that the apparatus is provided with an alpha-numerical keyboard; an alpha-numerical display; a programmed data processing unit; a read only memory and a random access memory associated with each other, with said keyboard and with said data processing unit; an automatic dialling circuit controlled by said data processing unit; and a communications controller for modulating data produced by said data processing unit for transmission by the telephone line and for demodulating signals received from said telephone line to produce data intelligible to said data processing unit, said unit being so programmed as to be able to command an operation by means of the telephone line in dependence upon data received therefrom or from the keyboard.
The telephone of the present invention which will henceforth be denominated a computerized telephone is therefore capable of executing true computer functions in addition to its basic function of making telephone connections. One principal option is its use for making a direct "directory enquiry" followed by an automatic or semi-automatic connection to a subscriber whose number is identified as a result of the enquiry.
In order to provide a clearer picture of such a function, a simple example will now be given. The user wishes to place a call to a certain FERNANDO RAMOS whose address is Avenida Atlantica 123, Rio de Janeiro. He then "types" on the keyboard the name and address of that person, such data appearing on the alpha-numerical display which may be similar to those used on pocket-sized computers. Having checked that the data is correctly entered to his satisfaction, he lifts the handset and presses a key which operates a program to call directory enquiries. As soon as the connection is completed the relevant data bank at the exchange will be accessed and, assuming the data provided is correct and sufficient, the computerized telephone will receive an appropriate signal that will be demodulated and processed by the data processing unit and an appropriate message will be shown on the display, either in the form of the desired telephone number or in the form of an indication that the correct number has been found. The computerized telephone will then either automatically dial that number or will dial it upon the user pressing an appropriate key on the keyboard so as to complete the

REFERENCES:
patent: 4278845 (1981-07-01), Chiou
patent: 4414675 (1983-11-01), Comroe
patent: 4473720 (1984-09-01), Hegi
patent: 4475013 (1984-10-01), Lee et al.
patent: 4503288 (1985-03-01), Kessler
patent: 4700378 (1987-10-01), Brown
patent: 4709387 (1987-11-01), Masuda
Patents Abstracts of Japan, vol. 4, No. 165 (E-34) (647), Nov. 15, 1980 & JP, A. 55112061 (Katsumi), Aug. 29, 1980, see the whole document.
Electronics International, vol. 55, No. 25, Dec. 1982, New York (US), K. Karstad: "Microsystem Modem Makes Dialling-up a Breeze", pp. 150-153, see p. 153, left-hand column, last paragraph.
Patents Abstracts of Japan, vol. 6, No. 111 (E-114) (989), Jun. 22, 1982, & JP, A. 5741059 (Tamura), Mar. 6, 1982, see the whole document.
J. Millman & H. Taub: "Pulbse, Digital, and Switching Waveforms", published 1965 McGraw-Hill, New York (US), pp. 236-240, see section 7-7; FIGS. 7-9, 7-11.

Affiliated with

Also associated with

Rating

Telephone and demodulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Telephone and demodulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Telephone and demodulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1283319