Archive for: patent

Patent: Dual Motor For Autofocus on STM Lenses

UPDATE
This is what we’re told this patent actually is.

“This is not a focus drive patent, it’s a SPRINGLESS LEAF SHUTER mechanism. EF Leaf shutter lens that will allow a true 1/1000s are on the drawing board, they just can’t make the Cmos do a clear scan and dump faster than 1/250s no matter what they have tried , and HSS make you loose way too much power.”

Original Post
A patent showing a dual motor autofocus for STM lenses has appeared. There is one motor for the STM and a secondary DCM motor. It looks like one motor assists starting the second motor for a faster and smoother operation. The patent information below is Google Translated. If anyone can clarify the patent, please do so in the forum thread associated with this post.

newstm

  • Patent Publication No. 2014-164106
    • Published Date 2014.9.8
    • Filing date 2013.2.25
  • Example 1
    • Moving the aperture one two motors
    • Main motor STM
    • Auxiliary motor DCM
    • And then rotate the first auxiliary motor, to assist the acceleration of the main motor

Source: [EG]

cr

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Patent: Dual Pixel Phase Detect AF While in AI Servo

A new patent that integrates normal AF with phase detect AF has become public. This sort of technology could very much improve AF tracking in burst mode. Perhaps we’ll see this technology on the upcoming EOS 7D replacement?

If anyone can further clarify this patent, please do.

Phase Detect AF w/Normal AF

Phase Detect AF w/Normal AF

Patent Publication No. 2014-142372

  • Published Date 2014.8.7
  • Filing date 2012.1.22

Source: [EG]

cr

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Patent: 45x Zoom for Waterproof Camera

Patent: 45x Zoom for Waterproof Camera

This patent may show where the next PowerShot D series camera is heading. Below is a patent for a 45x zoom lens that is for a waterproof/dustproof application.

  • Patent Publication No. 2014-109664 (Google Translated)
    • Publication date 2014.6.12
    • Filing date 2012.11.30
    • Related 2014-109665,2014-109666
  • Example 1
    • Zoom ratio 44.41
    • Focal length f = 4.62-13.02-205.00mm
    • Fno. 3.91-6.14-9.00
    • Half angle ω = 36.14-16.58-1.08 °
    • 99.33-103.38-113.64mm overall length of the lens
    • BF 12.11-10.81-4.28mm

Source: [EG]

cr

21 Comments

Patent: Another Multi Layer Related Sensor Patent from Canon

Patent: Another Multi Layer Related Sensor Patent from Canon

Below is another patent for a multi-layer related sensor patent from Canon has come to light. This is the third one that has appeared in the last month or so.

Keith over at Northlight breaks it down in a way that’s easy to understand. “The issue addressed, is light of the ‘wrong’ colour being reflected from one layer into another, which reduces the ability of different layers to respond to photons of only a particular range of colours. This has the potential to greatly improve the colour accuracy and fidelity of such stacked sensor designs.

Patent Publication No. 2014-130890 (Google Translated)

  • Publication date 2014.7.10
  • Filing date 2012.12.28
  • Multilayer sensor drawback of
  • G is light, the image quality is degraded and reflected by the surface of the layer between the G and B layer, re-enters the B layer
  • Canon patents
  • The provision of the dielectric film and the insulating film as an anti-reflection film
  • First insulating layer, B layer, a dielectric film, insulating film, dielectric film, G layer, a dielectric film, insulating film, insulating film, dielectric film, the R layer
  • By increasing the thickness of the dielectric film, to suppress the multiple reflection
  • The dielectric film is between the G layer and B layer, the reflectance with respect to G is lower than B

Source: [EG] via [NL]

cr

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Canon Joins Cooperative Agreement to Reduce Patent Trolls

Canon Joins Cooperative Agreement to Reduce Patent Trolls

Asana, Canon, Dropbox, Google, Newegg and SAP Announce Formation of New Cooperative Patent-Licensing Agreement
 
TOKYO, July 10, 2014—Asana, Canon Inc., Dropbox, Google, Newegg and SAP today announced the formation of the License on Transfer (LOT) Network, a cooperative patent-licensing agreement that will cut down on patent troll litigation and the growing practice of patent privateering.
 
Patent litigation reached an all-time peak last year, with more than 6,000 lawsuits filed. Most of those suits came from non-practicing entities, also known as patent trolls—companies that don’t have a business outside of licensing and litigating patents.
 
More than 70 percent of the patents used by trolls come from still-operating companies. Indeed, in a growing trend called privateering, companies are selling patents to trolls that then use those patents to attack other companies. In some cases, those companies arrange to get a cut of revenue generated from the trolls’ suits.
 
The LOT agreement is a new kind of royalty-free cross-license meant to address these growing systemic problems. Member companies receive a license when the patents are transferred out of the LOT group. That means that companies retain their right to enforce a patent so long as they retain ownership of it. However, as soon as it is sold, a license to the other members becomes effective, protecting them from attacks by the troll to which the patent was sold.

 The agreement includes several other provisions that preserve a patent portfolio’s value, including carve-outs for certain M&A transactions and change of control.
 
The initial members of the LOT Network range from early-stage startups to established technology companies. Together they own almost 300,000 patent assets, generate more than $117 billion in revenue and employ more than 310,000 people.
 
“The LOT Network is a sort of arms control for the patent world,” said Allen Lo, deputy general counsel for patents at Google. “By working together, we can cut down on patent litigation, allowing us to focus instead on building great products.”
 
“Startups need to overcome many risks before they can become mature, thriving companies. The LOT Network is a powerful and creative new idea that will help ensure that patent abuse need not be one of them,” said Dustin Moskovitz, cofounder of teamwork software provider Asana.
 
“The LOT Network provides a unique mechanism for reducing patent troll threats while maintaining a portfolio’s primary significance and value,” said Kenichi Nagasawa, director and group executive of Canon Inc.’s Corporate Intellectual Property & Legal Headquarters. “Through the further expansion of the LOT Network, I look forward to the patent system restoring its sound functionality.”
 
“We believe that patents should never be used to stifle innovation,” said Brett Alten, IP counsel at Dropbox, “The LOT network is a creative solution to fight patent abuse that becomes more effective with each company that joins. The more participants there are, the better off we’ll all be.”
 
“Newegg has a very strong history of successfully battling patent trolls, and the License on Transfer Network is another valuable tool that helps protect participants from frivolous patent litigation,” said Soren Mills, chief marketing officer of Newegg North America. “We’re very happy to join forces with Google and other leading technology companies to preserve the spirit of innovation that’s so vital to our collective well-being.”
 
“The structure of the LOT Network helps protect innovative patent owners from unwarranted litigation, without stifling valid, beneficial uses of patents, such as cross-licensing,” said Anthony DiBartolomeo, senior vice president and chief IP counsel at SAP. “As long as a company owns their patent they retain all their rights to it.”
 
Read more at http://www.lotnet.com.

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