Apple's Lightning Connector Detailed in Newly-Published Patent Applications

As noted by AppleInsider, the U.S. Patent and Trademark Office today published three Apple patent applications related to the company's Lightning connector introduced on its iOS devices late last year.

lightning_connector_patent_1

Perspective view of Lightning connector

The first application describes the hardware itself, while two nearly identical applications outline the adaptive technology used to assign pin functions. The only difference between the latter two applications appears to relate to one describing implementation on an electronic device while the other addresses its use on an accessory.

The present invention generally relates to connectors for connecting two devices. Specifically, certain embodiments of the present invention relate to reversible connectors with configurable contacts. [...]

Embodiments of the present invention provide techniques for dynamically configuring contacts of a host-side connector that is associated with a host system. In one embodiment of the present invention, a contact in the host-side connector is capable of being assigned one of several functions. The function to be assigned to the contact (and other contacts in the connector) may depend on the accessory coupled to the host system and the signals provided/used by the accessory. For example, when an audio only accessory is coupled to the host system, at least one of the contacts on the host-side connector can be configured to carry audio data.

lightning_connector_patent_2

Example pin-out diagram of Lightning connector

As part of the hardware-focused patent, Apple shares several examples of implementations for the Lightning connector, including the Lightning Digital AV adapter, Lightning to SD Card Camera Reader, and even an as yet unreleased Lightning dock of similar design to the company's iPad dock for the first-generation iPad with its 30-pin connector standard.

Apple's three patent applications published today were filed in November and December of last year, but are continuations of similar applications filed on September 7, 2012, five days before the company officially announced the standard as part of the iPhone 5 introduction. The patent applications can, however, be traced back even further to several provisional patent applications filed by Apple in November 2011.

Tag: Patent

Popular Stories

iphone 16 display

iPhone 17's Scratch Resistant Anti-Reflective Display Coating Canceled

Monday April 28, 2025 12:48 pm PDT by
Apple may have canceled the super scratch resistant anti-reflective display coating that it planned to use for the iPhone 17 Pro models, according to a source with reliable information that spoke to MacRumors. Last spring, Weibo leaker Instant Digital suggested Apple was working on a new anti-reflective display layer that was more scratch resistant than the Ceramic Shield. We haven't heard...
iPhone 17 Air Pastel Feature

iPhone 17 Reaches Key Milestone Ahead of Mass Production

Monday April 28, 2025 8:44 am PDT by
Apple has completed Engineering Validation Testing (EVT) for at least one iPhone 17 model, according to a paywalled preview of an upcoming DigiTimes report. iPhone 17 Air mockup based on rumored design The EVT stage involves Apple testing iPhone 17 prototypes to ensure the hardware works as expected. There are still DVT (Design Validation Test) and PVT (Production Validation Test) stages to...
Beyond iPhone 13 Better Blue

20th Anniversary iPhone Likely to Be Made in China Due to 'Extraordinarily Complex' Design

Monday April 28, 2025 4:29 am PDT by
Apple will likely manufacture its 20th anniversary iPhone models in China, despite broader efforts to shift production to India, according to Bloomberg's Mark Gurman. In 2027, Apple is planning a "major shake-up" for the iPhone lineup to mark two decades since the original model launched. Gurman's previous reporting indicates the company will introduce a foldable iPhone alongside a "bold"...
apple watch ultra yellow

What's Next for the Apple Watch Ultra 3 and Apple Watch SE 3

Friday April 25, 2025 2:44 pm PDT by
This week marks the 10th anniversary of the Apple Watch, which launched on April 24, 2015. Yesterday, we recapped features rumored for the Apple Watch Series 11, but since 2015, the Apple Watch has also branched out into the Apple Watch Ultra and the Apple Watch SE, so we thought we'd take a look at what's next for those product lines, too. 2025 Apple Watch Ultra 3 Apple didn't update the...
iphone 17 air iphone 16 pro

iPhone 17 Air USB-C Port May Have This Unusual Design Quirk

Wednesday April 30, 2025 3:59 am PDT by
Apple is preparing to launch a dramatically thinner iPhone this September, and if recent leaks are anything to go by, the so-called iPhone 17 Air could boast one of the most radical design shifts in recent years. iPhone 17 Air dummy model alongside iPhone 16 Pro (credit: AppleTrack) At just 5.5mm thick (excluding a slightly raised camera bump), the 6.6-inch iPhone 17 Air is expected to become ...
iPhone 17 Pro on Desk Feature

All iPhone 17 Models Again Rumored to Feature 12GB of RAM

Tuesday April 29, 2025 3:36 am PDT by
All upcoming iPhone 17 models will come equipped with 12GB of RAM to support Apple Intelligence, according to the Weibo-based leaker Digital Chat Station. The claim from the Chinese leaker, who has sources within Apple's supply chain, comes a few days after industry analyst Ming-Chi Kuo said that the iPhone 17 Air, iPhone 17 Pro, and iPhone 17 Pro Max will all be equipped with 12GB of RAM. ...
iPhone 17 Pro Blue Feature Tighter Crop

iPhone 17 Pro Launching Later This Year With These 13 New Features

Wednesday April 23, 2025 8:31 am PDT by
While the iPhone 17 Pro and iPhone 17 Pro Max are not expected to launch until September, there are already plenty of rumors about the devices. Below, we recap key changes rumored for the iPhone 17 Pro models as of April 2025: Aluminum frame: iPhone 17 Pro models are rumored to have an aluminum frame, whereas the iPhone 15 Pro and iPhone 16 Pro models have a titanium frame, and the iPhone ...
AirPods Pro 3 Mock Feature

AirPods Pro 3 Just Months Away – Here's What We Know

Tuesday April 29, 2025 1:30 am PDT by
Despite being more than two years old, Apple's AirPods Pro 2 still dominate the premium wireless‑earbud space, thanks to a potent mix of top‑tier audio, class‑leading noise cancellation, and Apple's habit of delivering major new features through software updates. With AirPods Pro 3 widely expected to arrive in 2025, prospective buyers now face a familiar dilemma: snap up the proven...

Top Rated Comments

Skika Avatar
156 months ago
Lightning >>> 30-pin
Score: 12 Votes (Like | Disagree)
bungiefan89 Avatar
156 months ago
Wireless for God sake!
Because having a giant pad on your desk to rest your phone on for charging is so much more convenient than a little plug, right? :rolleyes:
Score: 10 Votes (Like | Disagree)
LagunaSol Avatar
156 months ago
It's amazing how dismissive some people can be over what is literally a breakthrough connector design.

Parallel: Directional = challenging to connect.
Serial: Directional = challenging to connect.
ADB: Directional = challenging to connect.
USB: Directional = challenging to connect.
Mini-USB: Directional = challenging to connect.
Firewire: Directional = challenging to connect.
HDMI: Directional = challenging to connect.
30-pin Dock: Directional = challenging to connect.

Lightning: Non-directional = easy to connect.

Has there ever been a electronic connector that accomplished so much in so little space yet required so little effort from the user?

Yet people are going to dismiss this as unnecessary, over-engineered, pointless?

Good grief. This company can do no right.
Score: 9 Votes (Like | Disagree)
newagemac Avatar
156 months ago
I'm confused as to why the connector is so complex. The plug has eight pins on either side, but the jack only has eight pins on a single side. It seems that if the function of the pins on the plug were identical on each side, everything should work just fine. Even though the old dock connector had 30 pins (most of which were never used), I'm not sure what flexibility Apple is gaining by having adaptive Lightning connectors. I would think eight non-adaptive connectors would be able to carry all the needed power and data.

Because this is what allows the connector to work no matter which side you plug in. Probably my favorite feature of the Lighting connector. Nice little innovation IMO.
Score: 6 Votes (Like | Disagree)
redman042 Avatar
156 months ago
I see that, for a lot of people, Apple continues to do nothing right. Now that people are bored of complaining about Antennagate, I guess this is the next best thing to whine about.

Yeah a connector change is a bit painful at first, and some people are still waiting for more compatible accessories. But Apple has always "skated to where the puck is going" instead of "where the puck is" and this is no exception. Other than being a robust, tiny, easy to use little cable, it's highly adaptable to future needs. For those who see this new connector as a big complaint, may I suggest you skip a generation and hang on to your 30 pin devices a while longer until accessory makers catch up and prices drop.

I've had the iPhone 5 since it came out, and I like the new cable. It's not a big deal or anything, but it's one more coat of polish on a great product line, and I expect the change to pay more dividends down the road.
Score: 5 Votes (Like | Disagree)
iapplelove Avatar
156 months ago
Nothing more exciting than cable technology
Score: 5 Votes (Like | Disagree)