According to foreign media reports, although we still do not know what Apple will do in the field of VR (virtual reality), the company has clearly expressed interest in AR (Augmented Reality) in the past year. Recently, Apple released a new patent, which makes people can't help but imagine that the company is ready to go deep into the AR and VR fields.
This patent details "the method of placing virtual objects in a real-world environment." The company devised a system that used a "video device" (probably an iPhone) to take a 2D photo of the current environment and then use it as a reference point to place the virtual object into the real world. This approach allows virtual objects to be placed "in a more realistic way" with objects in the real world.
In describing this patent, Apple took advantage of the common use scenarios in VR and AR: furniture placement. Several photos and sets of numbers in the Apple patent document show that a virtual chair photo is projected into a room and placed with several other identical chairs and a table. When you move this virtual chair to the back of the table, the chair will be covered by the table, giving you a more realistic sense of reality.
Apple's patent claims that it provides people with the most intuitive experience, making it easier for people to judge whether "various products are suitable for a certain purpose." In short, it can help you determine if the product is suitable without the physical product and decide whether to purchase the product.
Therefore, in theory, with Apple's AR technology, the pocket wizard "Pikachu" in the Pokémon Go game will not always appear strangely in front of the screen. When it comes to the back of a chair, it may be covered by a chair.
Previously, Apple has issued a series of related patents. These patents show that Apple is serious about AR. In February last year, Apple released the "wearable information system" patent, which has a wireless VR helmet for use with the iPhone.
Unfortunately, this new patent does not specify what equipment it needs to support. If Apple wants to build AR as soon as possible, then it should be safer to try it on the iPhone first.
A siren is a loud noise-making device. Civil defense sirens are mounted in fixed locations and used to warn of natural disasters or attacks. Sirens are used on emergency service vehicles such as ambulances, police cars, and fire trucks. There are two general types: pneumatic and electronic.
Many fire sirens (used for calling the volunteer fire fighters) serve double duty as tornado or civil defense sirens, alerting an entire community of impending danger. Most fire
sirens are either mounted on the roof of a fire station or on a pole
next to the fire station. Fire sirens can also be mounted on or near
government buildings, on tall structures such as water towers,
as well as in systems where several sirens are distributed around a
town for better sound coverage. Most fire sirens are single tone and
mechanically driven by electric motors with a rotor attached to the
shaft. Some newer sirens are electronically driven speakers.
Fire sirens are often called "fire whistles", "fire alarms", or
"fire horns". Although there is no standard signaling of fire sirens,
some utilize codes to inform firefighters of the location of the fire.
Civil defense sirens also used as fire sirens often can produce an
alternating "hi-lo" signal (similar to emergency vehicles in many
European countries) as the fire signal, or a slow wail (typically 3x) as
to not confuse the public with the standard civil defense signals of
alert (steady tone) and attack (fast wavering tone). Fire sirens are
often tested once a day at noon and are also called "noon sirens" or
"noon whistles".
The first emergency vehicles relied on a bell. Then in the 70s,
they switched to a duotone airhorn. Then in the 80s, that was overtaken
by an electronic wail.
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