Non-keypad dialing interfaces for handheld radio telephones

A wireless phone and dial pad technology, applied in the field of dial interface, can solve problems such as complex multi-function buttons and user confusion

Inactive Publication Date: 2002-04-17
TELEFON AB LM ERICSSON (PUBL)
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Unfortunately, multi-function keys can be s

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Non-keypad dialing interfaces for handheld radio telephones
  • Non-keypad dialing interfaces for handheld radio telephones
  • Non-keypad dialing interfaces for handheld radio telephones

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The present invention will now be described more fully hereinafter with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully to convey the scope of the invention to those skilled in the art. Corresponding numerals indicate corresponding elements throughout.

[0025] A conventional arrangement of electronic components that enable a radiotelephone to send and receive telecommunication signals is in figure 1 is shown schematically in and is known to those skilled in the art of radiotelephony communications. An antenna 10 for receiving and transmitting wireless telecommunication signals is electrically connected to a radio frequency transceiver 11 which is further electrically conn...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

Radiotelephone dialing interfaces are provided wherein rotary dials and/or various switches are utilized to display and select alphanumeric characters within a radiotelephone display screen without the need for conventional keypads.

Description

field of invention [0001] This invention relates generally to radiotelephones, and more particularly to dialing interfaces for radiotelephones. Background of the invention [0002] Telecommunications devices, such as wireless telephones, have become increasingly popular for both personal and business use. However, as their popularity has increased, radiotelephones have also undergone miniaturization for storage and portability. In fact, some current wireless telephone prototypes are only 11-12 cm in length. [0003] Unfortunately, as wireless phones become smaller, less area is available for the user's keypad to operate the wireless phone. As a result, the keyboard is also smaller, resulting in a smaller size and spacing of the keys in the keyboard. However, for ergonomic reasons, there is a limit below which further reductions in the size and spacing of keys in a keyboard may be undesirable. As a result, further miniaturization of radiotelephones may be constrained due ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H04M1/02H04M1/00H04M1/23H04M1/26H04M1/2748H04M1/724
CPCH04M1/233H04M1/72519H04M1/274558H04M2250/70H04M1/2748H04M1/724
Inventor G·C·达维斯
Owner TELEFON AB LM ERICSSON (PUBL)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap