Telecommunications – Receiver or analog modulated signal frequency converter – Signal selection based on frequency
Patent
1993-10-21
1996-04-09
Urban, Edward F.
Telecommunications
Receiver or analog modulated signal frequency converter
Signal selection based on frequency
4551585, 4551862, 4551832, H04B 118
Patent
active
055070213
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The present invention is related to a method for the input of alphanumeric data into an electronic machine having an operating computer with a memory and a keyboard with keys, some or all of which having more than one letter of the alphabet associated with them.
For the input of alphanumeric data into an electronic machine, it is already known, for instance in the case of computers, to use a typewriter keyboard by which both letters and numerals can be entered. However, a typewriter keyboard, takes up a relatively large amount of space, particularly when only a few entries or else only brief entries are necessary. Furthermore, it is already known to convert letter information into code numbers which are contained in code lists. In this case, numbers are assigned to given words and then typed in by the operator of the machine via a number keyboard. This type of input, however, requires the operator of the machine to have the code table by him at the time of the entry. However, on many occasions, this is not the case and furthermore there is the danger of the operator misreading the table so that erroneous entries are effected. Furthermore, it has already been proposed to pass through the alphabet by means of direction keys and thus select the correct letters and then confirm them by pressing an enter key. This method also requires increased attention on the part of the operator since he must stop the search at the proper place and then confirm the letter desired. This type of entry is not advantageous in particular when the user of the electric machine has his attention diverted by other matters, or his attention must be directed to other things, for instance in highway traffic.
SUMMARY OF THE INVENTION
The method of the present invention is implemented by a device having an operating computer with a memory and has the advantage over the known devices in that the electronic apparatus is equipped with a simple, commercially available numerical keyboard and nevertheless alphanumeric entries are possible without this requiring great attention on the part of the operator. Apparatus developed in this manner are, on the one hand, relatively handy and, on the other hand, a type of entry which is understood by the operator without his having to convert the instruction which he would like to give the apparatus into a machine language which is incomprehensible to him. It is advantageous if the information given to the apparatus is not only displayed but, in addition, the appropriate command is also carried out at the same time in the apparatus if such information is unambiguous. In this way, the work of the operator is greatly facilitated. It is furthermore advantageous that, in the event of ambiguities, the operator be shown a selection menu of candidate selections so that he can eliminate any lack of clarity which is present merely by depressing another key. Finally, it is also advantageous to mark the ambiguity of the information entered by means of special characters, particularly by arrows in the display. In addition to the purely numerical keys, it is advantageous to provide one or two special keys by which the operating sequences can be differentiated or concluded. In this way, it is possible to also enter spacing information or to mark the end of the entry. The method of the present invention is of particularly advantageous use where the attention of the operator is claimed to a greater extent by other events. This is particularly true in the case of radio receivers which are present in vehicles. A particularly simple input device is also required in the case of navigation instruments in the car, or in the case of telephones, particularly mobile telephones.
The entry keyboard can most easily be formed as a known numeric key pad. Numeric key pads are manufactured in large numbers for telephones at a rather low cost so that the device equipped therewith is not made more expensive, or only insignificantly so. As special keys there enter into this connection, in particular, those k
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patent: 5020143 (1991-04-01), Duckeck et al.
patent: 5045947 (1991-09-01), Beevy
patent: 5152011 (1992-09-01), Schwob
patent: 5184971 (1993-02-01), Williams
patent: 5187810 (1993-02-01), Yoneyama et al.
Robert & Bosch GmbH
Sobutka Philip J.
Urban Edward F.
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