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user's finger, but are blocked by the plastic covering the click-wheel. So instead of passing through the plastic, the current creates a charge at the closest location to the finger, which is also known as capacitance. The component that detects this change in capacitance is the controller. Whenever the controller senses a change, it sends a signal to the microprocessor, which performs the desired action. The faster a finger moves around the wheel, the more concentrated the stream of signals it sends out. The moment the finger leaves the wheel, however, is when the controller stops detecting change in
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The "brain" behind the click-wheel is the conductive membrane behind the plastic covering. This membrane has "channels" that when connected, create a set of coordinates. These channels are conductors, which when connected to another conductor (a finger in this case), try to send a current through the
140:
The click wheel detects a user's input via its touch sensitive ring. Because of four mechanical buttons that lie beneath it, the ring is able to perform multiple commands. For example, browsing through music, after selecting a particular song, the click-wheel is used to adjust the volume. Pressing
152:. It allowed the pitch and volume of the instrument to be controlled by the distance from the musician's hands to two antennae. When a voltage is placed upon two conductors in close proximity with one another, without coming into contact, energy is stored in the form of
291:
160:
gathers and stores energy. The click wheel uses this property to detect the location of a finger, since the human body has capacitance with the conductive membrane under the click wheel’s plastic covering.
55:, which senses the touch of the user's fingers. The wheel allows a user to find music, videos, photos and play games on the device. The wheel is flush on the face of the
270:, Saito, Norihiko, "Contact operation type input device and its electronic components", published 2006-12-06, assigned to Saito Shigeru Kenchiku Kenkyus
487:
447:
329:
289:, Robbin, Jeffrey L.; Jobs, Steve & Schiller, Philip W., "Method and apparatus for use of rotational user inputs", issued 2010-05-04
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component of non touch-screen iPod models. It uses a combination of touch technology and traditional buttons, involving the technology of
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PERCOM '07: Proceedings of the Fifth IEEE International
Conference on Pervasive Computing and Communications
148:. This technology actually dates back to 1919, where it was first utilized in a musical instrument called a
715:
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from 2004 has a vertical scroll wheel similar to the iPod's click wheel. That same year, the luxury
589:
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52:
70:. The click wheel's design is credited to Apple's senior vice president of worldwide marketing,
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243:"Apple ordered to hand over $ 3.3 million to Japanese inventor in click wheel patent lawsuit"
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and is located below the screen. The click wheel was invented by
Norihiko Saito in 1998.
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156:. Even after the voltage is taken away, the stored charge remains. This is how a
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IEEE International
Conference on Pervasive Computing and Communications (PerCom)
177:
330:"A Capacitive Sensing Toolkit for Pervasive Activity Detection and Recognition"
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The click wheel replaced the touch wheel starting with the fourth-generation
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the select button can be used to skip to a specific part in the song.
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Review, What Hi-Fi? Posted 2008-09-03T09:00:00Z (September 3, 2008).
144:
The primary technology that the click-wheel demonstrates is that of
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31:
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168:, and was present on the first through fifth generations of the
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phones, PC Plus 2006-05-31T23:00:00 15ZMobile (May 31, 2006).
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Wimmer, Raphael; Kranz, Matthias; Boring, Sebastian;
108:. Please help to ensure that disputed statements are
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196:mobile phone also featured a scroll wheel. The
208:created the 'Navi wheel' which debuted on the
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224:music players also have similar interfaces.
486:: CS1 maint: numeric names: authors list (
446:: CS1 maint: numeric names: authors list (
343:. IEEE Computer Society. pp. 171–180.
314:March 14, 2006 (accessed October 12, 2008).
27:Navigation component of several iPod models
573:
559:
551:
374:"PC & Tech Authority | TechRadar"
180:, therefore stopping the current process.
128:Learn how and when to remove this message
104:Relevant discussion may be found on the
233:
216:also implemented such a feature on its
62:The design was first released with the
479:
439:
395:PhoneArena Team (September 16, 2008).
241:D'Orazio, Dante (September 26, 2013).
372:Pinnell, James (September 11, 2014).
36:The iPod line's signature click wheel
7:
523:Shamoon, Evan (October 23, 2007).
204:from 2007, also have it. In 2007,
25:
86:
1:
66:, and was last used with the
397:"Nokia 7280 review - Design"
684:Comparison of iPod managers
502:"Nokia N81 8GB music phone"
776:
538:– via www.wired.com.
68:iPod nano (5th Generation)
463:"Motorola Rokr E8 review"
423:"Samsung SGH-i300 review"
220:. Several models of Sony
200:from 2005, as well as
37:
525:"LG Chocolate VX8550"
349:10.1109/PERCOM.2007.1
218:LG Chocolate (VX8550)
35:
376:. Pcauthority.com.au
184:Similar technologies
97:factual accuracy is
190:Creative Zen Touch
146:capacitive sensing
53:capacitive sensing
38:
747:
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358:978-0-7695-2787-1
326:Schmidt, Albrecht
309:"How iPods work."
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739:Click wheel
734:Advertising
644:Accessories
401:Phone Arena
287:US7710394B2
178:capacitance
45:click wheel
18:Click wheel
656:iPod Hi-Fi
651:Headphones
268:JP 3852854
228:References
194:Nokia 7280
49:navigation
701:iPod game
661:Nike+iPod
534:April 27,
508:April 27,
472:April 27,
432:April 27,
427:TechRadar
406:April 27,
380:April 27,
252:April 14,
247:The Verge
210:Nokia N81
170:iPod Nano
158:capacitor
106:talk page
64:iPod mini
754:Category
677:Software
482:cite web
467:whathifi
442:cite web
328:(2007).
150:theremin
99:disputed
625:Shuffle
613:iPod U2
608:iPod+HP
598:Classic
222:Walkman
78:Details
47:is the
706:iTunes
590:Models
355:
293:
274:
727:Other
711:Store
694:Store
667:Socks
635:Touch
603:Photo
529:Wired
333:(PDF)
206:Nokia
760:IPod
630:Nano
620:Mini
582:iPod
536:2019
510:2019
488:link
474:2019
448:link
434:2019
408:2019
382:2019
353:ISBN
254:2020
188:The
166:iPod
57:iPod
43:iPod
40:The
689:iOS
345:doi
756::
527:.
484:}}
480:{{
465:.
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440:{{
425:.
399:.
351:.
339:.
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300:^
245:.
214:LG
212:.
172:.
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