Unlock instant, AI-driven research and patent intelligence for your innovation.

Foldable hand-held telephone

A telephone and handheld technology, applied in the field of foldable handheld telephones, can solve the problems of increasing the size, weight and cost of the handheld telephones

Inactive Publication Date: 2004-01-21
LENOVO INNOVATIONS LTD HONG KONG
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this type of sound generating device must be accompanied by a sensor that responds to the distance between the earpiece portion and the ear, resulting in increased size, weight and cost of the handset

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
  • Foldable hand-held telephone
  • Foldable hand-held telephone
  • Foldable hand-held telephone

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] see figure 1 , in which is shown a foldable hand-held telephone embodying the invention, which is generally indicated by reference numeral 2 . As shown, the portable telephone 2 includes a receiver housing 4 and a transmitter housing 6, the ends of which are hinged to each other by connecting members 5. As shown in FIG. An LCD (Liquid Crystal Display) 40 is mounted on the receiver casing 4 . The operation section 42 includes a plurality of keys arranged on the transmitter case 6 . The sound-generating means 8 are located in the receiver housing 4 and are realized, for example, with piezoelectric devices. A through hole 10 is formed on a face 12 of the receiver housing 4 facing the transmitter housing 6 when the portable telephone 2 is folded. The through hole 10 communicates with the part where the sound emitting device 8 is installed.

[0024] In the above-mentioned surface 12 of the receiver housing 4 is formed a groove 18 extending from the open end 14 of the thr...

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

A foldable handy phone of the present invention includes a receiver case and a transmitter case hinged to each other. A piezoelectric device or similar sounding means is accommodated in the receiver case. A through hole is formed in the surface of the receiver case that faces the transmitter case when the handy phone is folded up. The through hole is communicated to a portion accommodating the sounding means. A groove is formed in the above surface of the receiver case and extends from the open end of the through hole to the end of the receiver case opposite to the end hinged to the transmitter case. When the sounding means produces an alert tone in the folded position of the handy phone, the alert tone is radiated to the outside via the groove.

Description

technical field [0001] The present invention relates to foldable hand-held telephones. Background technique [0002] The common method of foldable hand-held telephone is to hinge the receiver shell and the transmitter shell with a hinge. A loudspeaker or similar sound producing device is built into the receiver housing. A through hole is formed on the surface of the receiver housing facing the transmitter housing when the handy phone is folded. The through hole leads to the part of the receiver housing where the sound generating device is installed. [0003] The user of the above-mentioned portable telephone puts the open end of the through hole or the earphone portion against the ear to listen to the sound output from the sound generating means. The maximum sound pressure level (SPL) to be output from a sound emitting device enclosed in a sealed space is limited to about 120 db (decibels) or lower in order to protect the eardrum from damage. It is customary to house the...

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
Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/38H04B1/3822H04M1/02H04M1/03H04W16/28H04W72/04H04W88/02
CPCH04M1/03H04M1/0214
Inventor 土岐望
Owner LENOVO INNOVATIONS LTD HONG KONG