Apple patents involve LED backlight, antenna, more
TweetFollow Us on Twitter

Apple patents involve LED backlight, antenna, more

Among several patent wins today, Apple has been granted a patent (number 8,100,544) by the U.S. Patent & Trademark Office for a LED backlight for display systems. It relates generally to device display systems, and more particularly to an LED backlight with highly uniform color for illuminating display systems.

The invention is for an LED backlight method for display systems comprising receiving a plurality of light emitting diodes categorized into a plurality of bins, wherein each bin references a separate range of white point colors, and determining an optimal order for mounting the plurality of light emitting diodes at spatially distributed positions, the plurality of light emitting diodes comprising white point colors associated with separate bins, wherein the optimal order of the plurality of light emitting diodes produces a light of a desired white point color when the light outputs of the plurality of light emitting diodes are mixed. The inventors are Wei Chen, Jun Qi, Victor Yin and John Zhong.

Here's Apple's background and summary of the invention: "As computer technology has advanced, the demand for portable computer systems, such as laptops, has increased. Portable computers have dramatically increased the mobility of computing power for the computer user. Since the first portable computer, manufacturers have increased computer mobility by decreasing the size, weight, and power demands of portable computers, increasing battery life, and increasing performance.

"The monitors presently used contribute greatly to the overall size and weight of the portable computer. The monitor must be of a sufficient size, brightness, and clarity to provide the user with readable images. In order to achieve these requirements, monitors place a large demand on available power resources and are therefore a significant contributor indirectly as well as directly to the weight of the portable computer.

"Typically, portable computer monitors utilize a liquid crystal display system. The liquid crystal display systems typically include a top plastic or glass panel and a bottom plastic or glass panel, having a liquid crystal display of thin film transistors and liquid crystal material in between. These systems also utilize a backlight system that typically includes a diffuser for passing light evenly to the liquid crystal display, a cold cathode fluorescent lamp ('CCFL') for producing light, a reflector for directing the light toward the diffuser, and a light pipe located between the diffuser and the reflector to spread light to the entire surface of the diffuser.

"The use of conventional CCFL liquid crystal display systems in the monitors of portable computers, however, creates a limiting factor in the continuing effort to reduce the size and weight of portable computers. CCFL technology has not kept pace with advances in other technologies that have reduced the size and weight of many of the other display components. Today, one of the major limitations in further reducing the thickness and weight of the display is therefore the CCFL illumination system.

"Light-emitting diode ('LED') technology offers attractive alternatives to the CCFL. LEDs are much thinner than the CCFL and do not require many of the weighty power supply systems of the CCFL. Compared to backlights using CCFLs, backlights with LEDs have many benefits, including lighter weight, higher brightness, higher color purity, larger color gamut, longer lifetime, and mercury-free composition. However, while a single CCFL can light an entire display, multiple LEDs are needed to light comparable displays.

A challenge with utilizing multiple LEDs, particularly when distributed in large arrays, is maintaining uniformity of color throughout the large number of LEDs. The color balance and spectra of the LEDs is governed by numerous factors such as manufacturing variances and the LED phosphorescence. For example, white LEDs are often actually blue LEDs with a complimentary yellow phosphor dot on the front of the LED. Depending upon manufacturing precision (and thus, related manufacturing costs), actual colors may therefore vary from, for example, slightly blue to slightly pink, often following a distribution curve in which many of the LEDs vary from the desired white point color.

"This can have a negative impact on the color uniformity of LCD displays. Understandably, reducing or compensating for such variability increases costs and complexity significantly as the number of LEDs increases in larger display configurations and environments.

"One solution is to select and utilize only those LEDs that provide the desired white point color. Such a solution, however, causes costs to be very high since only a fraction of the LED production can be utilized.

"Another solution is to compensate for LED color variations, such as by matching LEDs to one another and then filtering the light output to adjust the color to the desired white point color. This reduces the overall cost of the LEDs since most or all of the LEDs can be utilized. However, the additional color filters represent costly additional physical elements, oftentimes requiring a large number of available filter colors of finely varying shades and gradations. It can also increase the thickness of the display. An additional disadvantage is that such filters absorb light, causing the net brightness of the LED light sources to be reduced.

"Thus, if LEDs are to become a viable alternative to CCFLs, an economical and practical solution must be found to utilize a large number of non-matching LEDs while maintaining uniformity of color in the display panels in which the LEDs are utilized.

"In view of ever-increasing commercial competitive pressures, increasing consumer expectations, and diminishing opportunities for meaningful product differentiation in the marketplace, it is increasingly critical that answers be found to these problems. Moreover, the ever-increasing need to save costs, improve efficiencies, improve performance, and meet such competitive pressures adds even greater urgency to the critical necessity that answers be found to these problems.

"Solutions to these problems have been long sought but prior developments have not taught or suggested any solutions and, thus, solutions to these problems have long eluded those skilled in the art.

"The present invention provides an LED backlight method and apparatus for display systems. A plurality of light emitting diodes having different white point colors is provided. At least two of the light emitting diodes having different white point colors are selected to produce a light of a predetermined white point color when the light outputs of the selected light emitting diodes are mixed. The selected light emitting diodes are mounted on a display panel in a predetermined order at spatially distributed positions for mixing their light outputs to produce the light of the predetermined white point color to illuminate the display panel with the light of the predetermined white point color.

"Certain embodiments of the invention have other aspects in addition to or in place of those mentioned above. The aspects will become apparent to those skilled in the art from a reading of the following detailed description when taken with reference to the accompanying drawings."

Apple has also been granted two patents related to its iPhone antenna.

Patent number 8102318 is for an inverted F-antenna with bandwidth enhancement for electronic devices. An inverted-F antenna is provided that has a resonating element arm and a ground element. A shorting branch of the resonating element arm shorts the resonating element arm to the ground element. An antenna feed that receives a transmission line is coupled to the resonating element arm and the ground element. One or more impedance discontinuity structures are formed along the resonating element arm at locations that are between the shorting branch and the antenna feed. The impedance discontinuity structures may include shorting structures and capacitance discontinuity structures.

The impedance discontinuity structures may be formed by off-axis vertical conductors such as vias that pass through a dielectric layer separating the antenna resonating element arm from the ground element. Capacitance discontinuity structures may be formed from hollowed portions of the dielectric or other dielectric portions with a dielectric constant that differs from that of the dielectric layer. The inventors are Bing Chiang and Enrique Ayala Vazquez.

Patent number 8102321 involves a cavity antenna for an electronic device. Per the patent, the antenna may be formed from a conductive cavity and an antenna probe that serves as an antenna feed. The conductive cavity may have the shape of a folded rectangular cavity. A dielectric support structure may be used in forming the antenna cavity. A fin may protrude from one end of the dielectric support structure. The antenna probe may be formed from conductive structures mounted on the fin.

An inverted-F antenna configuration or other antenna configuration may be used in forming the antenna probe. The electronic device may have a housing with conductive walls. When the cavity antenna mounted within an electronic device, a planar rectangular end face of the fin may protrude through a thin rectangular opening in the conductive walls to allow the antenna to operate without being blocked by the housing. Bing Chiang and Gregory A. Springer are the inventors.

Finally, several other Apple patents have been granted by the U.S. Patent & Trademark Office.

Patent number 8102365 is for remote control systems that can distinguish stray light sources. Per the patent, the systems can distinguish predetermined light sources from stray light sources, e.g., environmental light sources and/or reflections are provided. The predetermined light sources can be disposed in asymmetric substantially linear or two-dimensional patterns. The predetermined light sources also can be configured to exhibit signature characteristics. The predetermined light sources also can output light at different signature wavelengths.

The predetermined light sources also can emit light polarized in one or more predetermined polarization axes. Remote control systems of the present invention also can include methods for adjusting an allocation of predetermined light sources and/or the technique used to distinguish the predetermined light sources from the stray light sources. The inventor is Brett G. Alten.

Patent number 8102728 involves cache optimizations using multiple threshold voltage transistors. In one embodiment, a memory circuit includes one or more memory cells that include transistors having a first nominal threshold voltage, and interface circuitry such as word line drivers and bit line control circuitry that includes one or more transistors having a second nominal threshold voltage that is lower than the first nominal threshold voltage. For example, the word line driver circuit may be driven by signals from a lower voltage domain than the memory circuit's voltage domain.

Lower threshold voltage transistors may be used for those signals, in some embodiments. Similarly, lower threshold voltage transistors may be used in the write data driver circuits. Other bit line control circuits may include lower threshold voltage transistors to permit smaller transistors to be used, which may reduce power and integrated circuit area occupied by the memory circuits. The inventors are Brian J. Campbell, Greg M. Hess and Hang Huang.

Patent RE43144 is for a system for predicting and managing network performance by managing and monitoring resource utilization and connection of the network. According to the system, network resource utilization is monitored and then computer systems seeking to transmit or receive data over the network as requested to do so at times that serve to more efficiently utilize the network resources. A method for managing network resources is also disclosed. David Z. Creemer is the inventor.

Patent number 8104048 involves browsing or searching user interfaces and more. The patent relates to systems, methods and software architectures for providing previews of files, such as previews of content of the files without launching the applications which created those files. In one embodiment, a method includes receiving a first call, through a first API to obtain a preview of content of a file, the first call being made by a first application program and being received by a preview generator daemon, and generating a request to obtain a first plug-in from a set of plug-ins, the first plug-in being configured to process a file type of the file to produce content in a format which can be displayed by the first application program. Other methods, systems, computer readable media and software architectures are disclosed. The inventors are Julien Jalon, Toby Paterson, Julien Robert and Yan Arrouye.

Patent number 8103951 involves dynamic schema creation. In a database application executing on a computer system, a database table view is represented by a structured object located on a storage device coupled to the computer system. Responsive to a user pasting content (e.g., spreadsheet data) onto the view of the table, the database application determines if the content to be pasted extends beyond the number of rows (records in a database) or columns (database fields) currently displayed in the table view.

If the content extends beyond the number of rows or columns currently displayed, the database application automatically adds one or more records or fields to the structured object on the storage device, and updates the table view to display one or more rows or columns corresponding to the records or fields added to the structured object. The inventors are Geoff Schuller and Yan Guo.

Patent number 8103893 is for thermal management of devices by suspension of offline diagnostic activities. The invention provides both a peripheral device that regulates its own temperature by adjusting its power consumption, and a method to accomplish the same. The method generally includes monitoring the temperature of the mass storage device and reducing power consumption when the temperature exceeds a certain threshold. Joel Burton is the inventor.

Patent number 8103793 involves a method and system for updating playlists. The invention involves improved techniques for automatic (or dynamic) updating (or maintaining) of playlists for a media system that stores and plays media content for a user of the media system. The automatic update to playlists can occur when additional media content is added to or removed from the media system. The automatic update to playlists can also occur when previously stored media content is otherwise altered. David Heller and Jeffrey L. Robbin are the inventors.

Patent number 8103505 is for a method and apparatus for speech synthesis using paralinguistic variation. A method and apparatus for speech synthesis in a computer-user interface using random paralinguistic variation is described. According to one aspect of the present invention, a method for synthesizing speech comprises generating synthesized speech having certain prosodic features. The synthesized speech is further processed by applying a random paralinguistic variation to the acoustic sequence representing the synthesized speech without altering the linguistic prosodic features.

According to one aspect of the present invention, the application of the paralinguistic variation is correlated with a previously applied paralinguistic variation to reflect a gradual change in the computer voice, while still maintaining a random quality. The inventors are Kim Silverman and Donald Lindsay.

 

Community Search:
MacTech Search:

Software Updates via MacUpdate

Vienna 3.1.9 :e81515b: - RSS and Atom ne...
Vienna is a freeware and Open-Source RSS/Atom newsreader with article storage and management via a SQLite database, written in Objective-C and Cocoa, for the OS X operating system. It provides... Read more
iExplorer 4.0.12.0 - View and transfer f...
iExplorer is an iPhone browser for Mac lets you view the files on your iOS device. By using a drag and drop interface, you can quickly copy files and folders between your Mac and your iPhone or... Read more
OpenEmu 2.0.5 - Open Source game-emulati...
OpenEmu is about to change the world of video game emulation, one console at a time... For the first time, the 'It just works' philosophy now extends to open source video game emulation on the Mac.... Read more
TextSoap 8.3.3 - Automate tedious text d...
TextSoap can automatically remove unwanted characters, fix up messed up carriage returns, and do pretty much anything else that we can think of to text. Save time and effort. Be more productive. Stop... Read more
Apple iTunes 12.6 - Play Apple Music and...
Apple iTunes lets you organize and stream Apple Music, download and watch video and listen to Podcasts. It can automatically download new music, app, and book purchases across all your devices and... Read more
Airmail 3.2.4 - Powerful, minimal email...
Airmail is an mail client with fast performance and intuitive interaction. Support for iCloud, MS Exchange, Gmail, Google Apps, IMAP, POP3, Yahoo!, AOL, Outlook.com, Live.com. Airmail was designed... Read more
MacPilot 9.0.6 - Enable over 1,200 hidde...
MacPilot gives you the power of UNIX and the simplicity of Macintosh, which means a phenomenal amount of untapped power in your hands! Use MacPilot to unlock over 1,200 features, and access them all... Read more
Jamf Pro 9.98 - Powerful sysadmin/enterp...
Jamf Pro (formerly Casper Suite) is the EMM tool that delights IT pros and the users they support by delivering on the promise of unified endpoint management for Apple devices. At Jamf, connecting... Read more
PopChar 7.7 - $16.99 (51% off)
PopChar helps you get the most out of your font collection. With its crystal-clear interface, PopChar provides a frustration-free way to access any font's special characters. Features Expanded... Read more
RapidWeaver 7.3.1 - Create template-base...
RapidWeaver is a next-generation Web design application to help you easily create professional-looking Web sites in minutes. No knowledge of complex code is required, RapidWeaver will take care of... Read more

Failbetter Games details changes coming...
Sunless Sea, Failbetter Games' dark and gloomy sea explorer, sets sail for the iPad tomorrow. Ahead of the game's launch, Failbetter took to Twitter to discuss what will be different in the mobile version of the game. Many of the changes make... | Read more »
Splish, splash! The Pokémon GO Water Fes...
Niantic is back with a new festival for dedicated Pokémon GO collectors. The Water Festival officially kicks off today at 1 P.M. PDT and runs through March 29. Magikarp, Squirtle, Totodile, and their assorted evolved forms will be appearing at... | Read more »
Death Road to Canada (Games)
Death Road to Canada 1.0 Device: iOS Universal Category: Games Price: $7.99, Version: 1.0 (iTunes) Description: Get it now at the low launch price! Price will go up a dollar every major update. Update news at the bottom of this... | Read more »
Bean's Quest Beginner's Guide:...
Bean's Quest is a new take on both the classic platformer and the endless runner, and it's free on the App Store for the time being. Instead of running constantly, you can't stop jumping. That adds a surprising new level of challenge to the game... | Read more »
How to rake in the cash in Bit City
Our last Bit City guide covered the basics. Now it's time to get into some of the more advanced techniques. In the later cities, cash flow becomes much more difficult, so you'll want to develop some strategies if you want to complete each level.... | Read more »
PixelTerra (Games)
PixelTerra 1.1.1 Device: iOS Universal Category: Games Price: $.99, Version: 1.1.1 (iTunes) Description: The world of PixelTerra is quite dangerous so you need to build a shelter, find some food supply and get ready to protect... | Read more »
Tokaido™ (Games)
Tokaido™ 1.0 Device: iOS Universal Category: Games Price: $6.99, Version: 1.0 (iTunes) Description: Discover the digital adaptation of Tokaido, the boardgame phenomenon that has already sold more than 250,000 copies worldwide, and... | Read more »
Card Thief (Games)
Card Thief 1.0 Device: iOS Universal Category: Games Price: $1.99, Version: 1.0 (iTunes) Description: Card Thief is a solitaire style stealth game played with a deck of cards. In Card Thief you move through a deck of cards as a... | Read more »
Smilegate’s crafting battler Super Tank...
Super Tank Rumbleputs you in the seat of your very own, handcrafted tank. You can choose from over 100 different parts to create your Super Tank before taking it out to wreak havoc on your opponents in glorious PVP combat. Now, Smilegate is upping... | Read more »
The best games to play while you wait fo...
Mass Effect: Andromeda arrives this coming Tuesday and people are getting understandably antsy. There's a whole weekend standing between us and a brand new Bioware adventure. What's a geek to do? Well, you could certainly give these fine mobile... | Read more »

Price Scanner via MacPrices.net

13-inch Touch Bar MacBook Pros on sale for up...
B&H Photo has the Apple 13″ Touch Bar MacBook Pros in stock today and on sale for up to $150 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 13″ 2.9GHz/512GB Touch Bar... Read more
Today only! 15-inch 2.7GHz Space Gray Touch B...
B&H Photo has the new 2016 15″ 2.7GHz Space Gray Apple Touch Bar MacBook Pro in stock today and on sale for $300 off MSRP for today only. Shipping is free, and B&H charges NY sales tax only... Read more
New $329 iPad A Fabulous Value; 10.5-Inch iPa...
Part of the iPad upgrade/new model puzzle is now in place. Yesterday, as KGI Securities financial services group analyst Ming-Chi Kuo last summer predicted they would, Apple released a new low-cost 9... Read more
New 9.7-Inch iPad Features All Of The Fun...
Apple today updated its most popular-sized iPad, featuring a brighter 9.7-inch Retina display and best-in-class performance at its most affordable price ever, starting at $329 (US) with 32GB of... Read more
Apple Introduces iPhone 7 and iPhone 7 Plus (...
Apple today announced iPhone 7 and iPhone 7 Plus (PRODUCT)RED Special Edition in a vibrant red matte aluminum finish, in recognition of more than 10 years of partnership between Apple and (RED). This... Read more
Apple now offering Certified Refurbished 15-i...
Apple is now offering Certified Refurbished 2016 15″ Touch Bar MacBook Pros for $360-$420 off original MSRP. An Apple one-year warranty is included with each model, and shipping is free: - 15″ 2.6GHz... Read more
Apple Introduces Clips: A Free Innovative Way...
Apple today introduced Clips, a new app that makes it quick and fun for anyone to create expressive videos on iPhone and iPad. The app features a unique design for combining video clips, photos and... Read more
Urban Armor Gear Unveils Case For 4th Generat...
Orange County, California based Urban Armor Gear (UAG), designers of rugged, lightweight protective cases for phones, tablets and laptops, has released its latest drop-tested cases for Apple’s 4th... Read more
Most Users Continue To Prefer 5.0 to 5.3 Inch...
In the first half of 2016, US and UK smartphone users were most likely to be interested in purchasing a device with a 5.3″ or 5.0″ display. Findings in a new report from the User Experience... Read more
12-inch 1.2GHz Retina MacBooks on sale for up...
B&H has 12″ 1.2GHz Retina MacBooks on sale for up to $200 off MSRP. Shipping is free, and B&H charges NY sales tax only: - 12″ 1.2GHz Space Gray Retina MacBook: $1439.99 $160 off MSRP - 12″ 1... Read more

Jobs Board

*Apple* Retail - Multiple Positions - Apple,...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
Fulltime aan de slag als shopmanager in een h...
Ben jij helemaal gek van Apple -producten en vind je het helemaal super om fulltime shopmanager te zijn in een jonge en hippe elektronicazaak? Wil jij werken in Read more
Starte Dein Karriere-Abenteuer in den Hauptst...
…mehrsprachigen Teams betreust Du Kunden von bekannten globale Marken wie Apple , Mercedes, Facebook, Expedia, und vielen anderen! Funktion Du wolltest schon Read more
Starte Dein Karriere-Abenteuer in den Hauptst...
…mehrsprachigen Teams betreust Du Kunden von bekannten globale Marken wie Apple , Mercedes, Facebook, Expedia, und vielen anderen! Funktion Du wolltest schon Read more
*Apple* Retail - Multiple Positions - Apple,...
Job Description: Sales Specialist - Retail Customer Service and Sales Transform Apple Store visitors into loyal Apple customers. When customers enter the store, Read more
All contents are Copyright 1984-2011 by Xplain Corporation. All rights reserved. Theme designed by Icreon.