Two-way audio communication device and method of manufacturing
A two-way audio communication device includes a housing (190) with passageways (491, 492). Electronics (310) are located in the housing. The device has a retractable speaker or earpiece (220) and a retractable microphone (410). A spool (340) is adjacent to the housing. Electrical wires (420) electrically couple the retractable microphone to the electronics, and the electrical wires are retractable through the passageways and onto the spool.
This invention relates generally to two-way audio communication devices and more specifically to a two-way audio communication device having a retractable microphone.
BACKGROUND OF THE INVENTIONCell phones have been in mainstream use for more than fifteen years, and earphones have been around for many decades. Because many cell phone users drive or otherwise multitask while talking on the cell phone and because many cell phone users desire to avoid radiation from their cell phone, a hands-free set was developed to permit the cell phone user to utilize both hands while still carrying on a conversation and to also keep the cell phone away from the user's head. A hands-free set typically comprises an earpiece coupled to a microphone by electrical wires, but hands-free sets are separate from the cell phone and must be plugged into a jack or outlet on the cell phone to be operational. Therefore, the cell phone user does not have a convenient place to store the hands-free set when it is not in use. Thus, the hands-free set may be easily lost or otherwise separated from the cell phone. While a cell phone is a common example, other two-way communication devices present the same challenges when the user wants to have a hands-free option. Accordingly, a need exists for a two-way communication device having an integrated hands-free system, such as, for example, a retractable microphone.
BRIEF DESCRIPTION OF THE DRAWINGSThe present invention is illustrated by way of example and not limitation in the accompanying FIGS., in which like references indicate similar elements, and in which:
Skilled artisans will appreciate that elements in the FIGS. are illustrated for simplicity and clarity and have not necessarily been drawn to scale. For example, the dimensions of some of the elements in the FIGS. may be exaggerated relative to other elements to help to improve understanding of embodiments of the present invention. In the following description, the term “hole” refers to an opening having any geometric shape and is not limited round openings. “Non-circular” refers to geometric shapes that are not round including, but not limited to, ovals, ellipses, rectangles, squares, triangles, and other polygons. “Disk” means a flattened piece having any geometric shape and is not limited to circular objects.
DETAILED DESCRIPTION OF THE DRAWINGS
Referring now to
In another embodiment of the invention, two-way audio communication device 100 has one or more rigid tabs, rather than elastic band 240, coupled to housing 190 at back surface 201 near the edge of cavity 230. The tabs extend at least partially across cavity 230 to hold earpiece 220 in cavity 230. An example of two such tabs is illustrated in
In a different embodiment, the locations of recess 330 and recess 360 are exchanged. In this different embodiment, recess 330, spool 340, and retraction mechanism 350 can be at the top of a two-way audio communication device at back surface 201, and recess 360 and battery 320 can be at back surface 201 near the bottom of the device.
Referring now to
Two-way audio communication device 100 also includes release mechanism 480 to control the extension and retraction of earpiece 220, retractable microphone 410, and electrical wires 420. Release mechanism 480 comprises button 180 having head 481 at second side surface 170 and body 482 extending into recess 490 of housing 190. Body 482 of button 180 has hole 483 through which electrical wires 420 pass. Release mechanism 480 also comprises spring 484 which couples body 482 of button 180 to a bottom portion of recess 490 in housing 190. Housing 190 comprises passageway 491 and passageway 492, which are located at opposite sides of release mechanism 480.
Button 180 moves perpendicular to passageways 491 and 492 between a wire-engaging position and a wire-releasing position. Button 180 is illustrated in
When button 180 is in its wire-releasing position, as illustrated in
In a different embodiment, release mechanism 480 provides sufficient friction in its wire-engaging position to prevent electrical wires 420 from retracting onto spool 340, but a user of two-way audio communication device 100 can still remove earpiece 220 from cavity 230 and pull electrical wires 420 out of housing 190 when button 180 is in its wire-engaging position. In another embodiment, the pulling of electrical wires 420 out of housing 190 automatically moves button 180 into its wire-releasing position.
Retraction mechanism 350 also includes wheel 430 with a groove (not shown in
Referring to
Retraction mechanism 350 further comprises top center axle 560 with hollow center rod 562 coupled to non-circular column 561. In one embodiment, the exterior of non-circular column 561 can be rectangular. In another embodiment, the exterior of non-circular column 561 can be triangular. In yet another embodiment, the exterior of non-circular column 561 can be polygonal. In its assembled stated, non-circular column 561 extends above open cylinder 510. Threaded hole 566 is at the top of non-circular column 561.
Top center axle 560 fits over bottom center axle 520. More specifically, hollow center rod 562 fits over hollow center rod 522 of bottom center axle 520. Hollow center rod 562 of top center axle 560 has hole 563. When top center axle 560 fits over bottom center axle 520, hole 563 in top center axle 560 aligns with hole 523 in bottom center axle 520.
Spring 550, which can be a coil spring or a ribbon spring, provides a biasing force on top center axle 560 and bottom center axle 520. End 551 of spring 550 passes through aligned holes 563 and 523 of top and bottom center axles 560 and 520, respectively. Body 552 of spring 550 coils or winds around top and bottom center axles 560 and 520, which are coupled together by spring 550. End 553 of spring 550 attaches to interior surface 513 of open cylinder 510. In one embodiment, when spring 550 is in its most relaxed, least compressed, or least biased state, spring 550 can expand to contact the inner surface of the sidewalls of open cylinder 510.
In another embodiment of the invention, a screw, rivet, or other fastening means may be used to couple bottom center axle 520 to top center axle 560. In yet another embodiment, bottom center axle 520 may be glued to top center axle 560. In still another embodiment, the interior of hollow center rod 562 of top center axle 560 can have an oval, elliptical, square, rectangular, triangular, or other cross-section rather than a circle, and the exterior top portion of hollow center rod 522 of bottom center axle 520 can be shaped the same as the interior of hollow center rod 562 of top center axle 560. Thus, the hollow center rod 562 of top center axle 560 and hollow center rod 522 of bottom center axle 520 can be mechanically interlocked. In yet another embodiment, hollow center rod 562 can fit inside hollow center rod 522. In all of these embodiments, end 551 of spring 550 can be attached to top center axle 560, bottom center axle 520, or both.
Retraction mechanism 350 also includes cover 570 which has eyelets 571 adjacent to cover 570. Eyelets 571 are aligned with eyelets 511 exterior to open cylinder 510 and are also aligned with holes 591 in bottom surface 531 of recess 330. Spring 550, bottom center axle 520, and a portion of top center axle 560 are enclosed in open cylinder 510 by cover 570, which is located over open cylinder 510. Cover 570 also has hole 572 at its center sized to fit over non-circular column 561 of top center axle 560. Thus, non-circular column 561 protrudes from the then-covered open cylinder 510 while hollow center rod 562 remains within open cylinder 510 covered by cover 570. Shoulder 565 of top center axle 560 prevents top center axle 560 from slipping entirely out of open cylinder 510 through hole 572 of cover 570. Hole 572 in cover 570 is sized appropriately to permit non-circular column 561 of top center axle 560 to rotate.
Retraction mechanism 350 also includes screws 580, which fasten cover 570 to open cylinder 510 and which also fasten cover 570 and open cylinder 510 to housing 190. Screws 580 also fasten cover 570 to open cylinder 510 by passing through eyelets 571 adjacent to cover 570 and eyelets 511 exterior to open cylinder 510. Screws 580 fasten cover 570 and open cylinder 510 to housing 190 by further passing through holes 591 in bottom surface 531 of recess 330.
Spool 340 is fixed upon non-circular column 561 of top center axle 560 and is located over cover 570. Referring to
Electrical wires 420 are coupled to electronics 310 (
Referring now to
It is understood that the embodiment illustrated in
Flow chart 1100 continues with a step 1140 for attaching a wheel with a groove to the housing and a step 1150 for aligning a hole of an open cylinder and eyelets of the same open cylinder with corresponding holes in a recess of the housing. The wheel in step 1140 can be similar to wheel 430 shown in
Flow chart 1100 continues with a step 1170 for fitting a top center axle partially over the bottom center axle wherein the top center axle comprises: a non-circular column located above the open cylinder and a hollow center rod coupled to the non-circular column. The hollow center rod of the top center axle is fitted over a hollow center rod of the bottom center axle. A hole in the top center axle is aligned with a hole in the bottom center axle. For example, the top center axle and its components in step 1170 can be similar to top center axle 560 having non-circular column 561, hollow center rod 562, and hole 563 shown in
Flow chart 1100 continues in
Flow chart 1100 continues with a step 1210 for assembling a spool adjacent to the housing wherein assembling the spool adjacent to the housing comprises positioning a spool having a center hole conformal to the shape of the non-circular column of the top center axle onto the non-circular column, aligning a second hole in the spool with a hole in the non-circular column of the top center axle, and securing the spool to the non-circular column of the top center axle. For example, the spool in 1210 can be similar to spool 340 depicted in
Flow chart 1100 further continues with a step 1220 for threading one end of the electrical wires through the aligned holes in the spool and the non-circular column of the top center axle, through the interiors of the hollow center rods of the top and bottom center axle to the electronics, and leaving a second end of the electrical wires extending from the spool and the non-circular column. Next, in
The sequence of assembly steps provided in flow chart 1100 is not the only order in which the various steps can be performed. For example, step 1120 for positioning the electronics in the housing can occur after assembling a spool adjacent to the housing in step 1210; step 1130 for providing a retractable speaker and a retractable microphone can occur after the electrical wires are wrapped around the spool in step 1230; and step 1220 for threading the electrical wires through the top and bottom center axles can occur before the spool is assembled adjacent to the housing in step 1210.
In the foregoing specification, the invention has been described with reference to specific embodiments. One of ordinary skill in the art, however, appreciates that various modifications and changes can be made without departing from the scope of the present invention as set forth in the claims below. For example, other release mechanisms and retraction mechanism can be used. Additionally, the retractable earpiece and the retractable microphone can be integrated into a single physical component, instead of being two separate components. Accordingly, the specification and FIGS. are to be regarded in an illustrative sense, rather than a restrictive sense, and all such modifications are intended to be included within the scope of the present invention.
Benefits, other advantages, and solutions to problems have been described with regard to specific embodiments. The benefits, advantages, solutions to problems, and any element or elements that may cause any benefit, advantage, or solution to occur or become more pronounced, however, are not to be construed as critical, required, or essential features or elements of any or all of the claims. As used herein, the term “comprises,” “comprising,” or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Claims
1. A two-way audio communication device comprising:
- a housing having a first passageway;
- electronics in the housing;
- a retractable speaker;
- a retractable microphone;
- a spool adjacent to the housing; and
- electrical wires electrically coupling the retractable microphone to the electronics, retractable through the first passageway, and retractable onto the spool.
2. The two-way audio communication device in claim 1 wherein the electronics detect when the retractable speaker and the retractable microphone are extended.
3. The two-way audio communication device in claim 1 further comprising:
- a second microphone;
- and a second speaker.
4. The two-way audio communication device in claim 3 wherein the electronics permit a simultaneous use of the retractable microphone and the second microphone; and
- wherein the electronics permit a simultaneous use of the retractable speaker and the second speaker.
5. The two-way audio communication device in claim 1 wherein the housing further comprises a cavity to hold the retractable speaker in its retracted state.
6. The two-way audio communication device in claim 5 further comprising an elastic band coupled to the housing and located across the cavity to hold the retractable speaker in the cavity.
7. The two-way audio communication device in claim 5 further comprising a tab located at an edge of the cavity and extended at least partially across the cavity to hold the retractable speaker in the cavity.
8. The two-way audio communication device in claim 1 further comprising an antenna having a second passageway wherein the electrical wires are retractable through the second passageway.
9. The two-way audio communication device in claim 1 wherein the retractable microphone comprises a flexible housing.
10. The two-way audio communication device in claim 1 wherein the retractable microphone is retractable into the first passageway of the housing.
11. The two-way audio communication device in claim 1 having a release mechanism comprising:
- a button comprising: a head exterior to the housing; and a body extending into the housing and having a hole through which the electrical wires pass,
- wherein the housing further comprises a second passageway located at an opposite side of the release mechanism from the first passageway;
- wherein the button is moveable perpendicular between a wire-engaging position and a wire-releasing position;
- wherein the button in its wire-releasing position aligns the hole in the body of the button with the first and second passageways; and
- wherein the button in its wire-engaging position misaligns the hole in the body of the button with the first and second passageways.
12. A cellular telephone comprising:
- a housing having a front surface, a back surface with a cradle and a recess, a first side surface, and a second side surface;
- electronics in the housing;
- a removable cover over the recess;
- a keypad at the front surface;
- a digital display at the front surface;
- a speaker at the front surface;
- a first microphone at the front surface;
- an antenna towards the first side surface;
- an earpiece at the back surface, towards the second side surface, and retractable into the cradle;
- a second microphone at the back surface, towards the second side surface, and retractable into the cradle;
- a battery at the back surface;
- a spool in the recess; and
- electrical wires electrically coupling the earpiece and the second microphone to the electronics, retractable into the cradle, retractable into the recess, and retractable onto the spool.
13. The cellular telephone of claim 12 further comprising an auto-answer mechanism comprising:
- a first electrical contact located in the cradle and electrically coupled to the electronics; and
- a second electrical contact located on the earpiece,
- wherein the first electrical contact is electrically coupled to the second electrical contact when the earpiece is retracted into the cradle.
14. The cellular telephone of claim 12 wherein the electronics permit a simultaneous use of the first microphone and the second microphone; and
- wherein the electronics permit a simultaneous use of the speaker and the earpiece.
15. The cellular telephone in claim 12 further comprising an elastic band coupled to the housing and located across the cradle to hold the earpiece in the cradle.
16. The cellular telephone in claim 12 further comprising a tab located at an edge of the cradle and extended at least partially across the cradle to hold the earpiece in the cradle.
17. The cellular telephone in claim 12 having a release mechanism comprising:
- a button comprising: a head at the second side surface; a body extending into the housing and having a hole through which the electrical wires pass; and a spring coupling the body to the housing,
- wherein the housing further comprises passageways located at opposite sides of the release mechanism;
- wherein the button is moveable perpendicular to the passageways between a wire-engaging position and a wire-releasing position;
- wherein the spring biases the button towards the wire-engaging position;
- wherein the button in its wire-releasing position aligns the hole in the body of the button and the passageways;
- wherein the button in its wire-engaging position misaligns the hole in the body of the button and the passageways; and
- wherein the electrical wires are retractable through the cradle, retractable through the passageways, retractable through the hole in the body of the button, and retractable onto the spool.
18. The cellular telephone in claim 17 wherein the second microphone comprises a flexible housing retractable through at least one of the passageways and retractable through the hole in the body of the button in the release mechanism.
19. The cellular telephone in claim 12 wherein the second microphone comprises a flexible housing.
20. The cellular telephone in claim 12 wherein the second microphone is retractable from the cradle into the housing.
21. The cellular telephone in claim 12 further comprising:
- a wheel located in the recess and having a groove;
- an open cylinder having a hole interior to the open cylinder and eyelets exterior to the open cylinder;
- a bottom center axle comprising: a disk at one end, located below the recess, located below the open cylinder, and having a hole in its center; and a hollow center rod coupled to the disk, extending into the recess, extending into the open-cylinder through the hole in the open cylinder, located in a center of the open cylinder, and having a hole;
- a top center axle comprising; a non-circular column above the open cylinder having a top inner portion of the non-circular column threaded to receive a screw and having a hole; and a hollow center rod coupled to the non-circular column, fitted over the hollow center rod of the bottom center axle, and having a hole aligned with the hole in the hollow center rod of the bottom center axle;
- a spring comprising: a first end passed through the holes of the hollow center rods of the top and bottom center axles; a body coiled around the top and bottom center axles; and a second end attached to an interior of the open cylinder;
- a cover located over the open cylinder, having eyelets adjacent to the cover and aligned with the eyelets exterior to the open cylinder, and having a hole in its center sized to fit over the non-circular column of the top center axle and sized to permit the non-circular column of the top center axle to rotate;
- first screws passing through the eyelets exterior to the open cylinder and the eyelets adjacent to the cover, fastening the cover to the open cylinder, and fastening the open cylinder to the housing; and
- a second screw,
- wherein the spool has a first hole conformed to the non-circular column of the top center axle and through which the non-circular column of the top center axle extends, has a second hole aligned with the hole in the non-circular column of the top center axle, and is secured to the non-circular column of the top center axle by the second screw.
22. The cellular telephone in claim 21 wherein the electrical wires extend from the earpiece and the second microphone to the cradle, into the recess, across the groove in the wheel to the spool, through the aligned holes in the spool and the non-circular column of the top center axle, through the interior of the hollow center rods of the top and bottom center axle, and through the hole in the disk of the bottom center axle to the electronics.
23. A method of manufacturing a two-way audio communication device comprising:
- providing a housing having a passageway;
- positioning electronics in the housing;
- providing a retractable speaker and a retractable microphone;
- assembling a spool adjacent to the housing; and
- electrically coupling electrical wires and the retractable microphone to the electronics.
24. The method of manufacturing a two-way communication device in claim 23 further comprising:
- attaching a wheel with a groove to the housing;
- aligning a hole of an open cylinder and eyelets of the open cylinder with corresponding holes in a recess of the housing;
- placing a hollow center rod of a bottom center axle through a hole in the recess and through a hole interior to the open cylinder;
- fitting a top center axle partially over the bottom center axle wherein the top center axle comprises: a non-circular column located above the open cylinder and having a hole; and a hollow center rod coupled to the non-circular column, fitted over the hollow center rod of the bottom center axle, and having a hole aligned with a hole in the hollow center rod of the bottom center axle;
- biasing a spring around the top and bottom center axles by passing one end of the spring through the holes of the hollow center rods of the top and bottom center axles, coiling the body around the top and bottom center axles, and attaching a second end of the spring to the open cylinder;
- placing a cover over the open cylinder wherein the non-circular column of the top center axle extends through a hole in the cover and wherein the cover has eyelets adjacent to the cover;
- screwing screws through the eyelets exterior to the open cylinder, the eyelets adjacent to the cover, and the holes in the recess to fasten the cover to the open cylinder and to secure the open cylinder and the cover to the housing;
- threading one end of the electrical wires through aligned holes in the spool and the non-circular column of the top center axle, through the interiors of the hollow center rods of the top and bottom center axle to the electronics, and leaving a second end of the electrical wires extending from the spool and the non-circular column;
- wrapping the electrical wires around the spool; and
- passing the electrical wires around the groove in the wheel and through the passageway, wherein assembling the spool adjacent to the housing comprises: positioning the spool having a center hole conformal to the shape of the non-circular column of the top center axle onto the non-circular column; and securing the spool to the non-circular column of the top center axle.
Type: Application
Filed: Aug 12, 2004
Publication Date: Feb 16, 2006
Inventor: Chang Guo (Chandler, AZ)
Application Number: 10/918,034
International Classification: B65H 16/02 (20060101);