Apple Inc. (Cupertino, CA)
What is a Patent for Translation Lookaside Buffer Invalidation for merged invalidation requests across power boundaries
The disclosed subject matter relates to the field of memory management. More specifically however, without the need of exclusion, the disclosed subject matter pertains to power-aware translation lookaside buffer (TLB) optimization to prevent invalidation.
Computers and other computational devices typically have at minimum one processor that is programmable, which is commonly known as central Processing Unit (CPU). They often also include other programmable processors that are utilized for specialized processing of various types including graphic processing operations, which can be carried out by graphic processing units (GPUs). The GPUs are generally composed of multiple cores or elements that can execute the same instructions on parallel data streams. This is why they are more efficient than general purpose CPUs in processing large amounts of data in parallel. A CPU generally acts as host and hand-offs specialized parallel tasks to the GPUs and other specialized processors, such as the neural engine or processor.
Computer memory is required to allow both the CPU and GPU for them to work. Computer memory is usually as cache (random-access memory) or RAM. It’s utilized to store temporary data as well as instructions for GPU and CPU. To make it easier to manage the memory available, address translation is often used. It is typically utilized to speed up access to memory, provide access to greater amounts of virtual memory than actually exists, and/or allow multiple memory requests (e.g. different processes using the GPU or CPU) to share memory. A memory requestor could send an order for memory using a virtual address as well as an address translation mechanism can convert the virtual address to the physical address of the memory.
One embodiment reveals a method for memory management. The method is based on receiving a request to clear one or more entries from the translation lookaside buffer. Additionally, the method involves receiving another request to the removal of some or all entries of the TLB. This method includes mixing the first and second requests. The method further includes finding out if a processor that is associated with the TLB was switched to inactive mode. The method also involves dropping the first and second requests in accordance with the decision.
In one instance, each of the described methods, and variation thereof, can be implemented as a series of computer executable instructions. Such instructions may use any one or more of the aforementioned programming languages. These instructions can be compiled into programs or engines, and stored in any media which is executable and readable by a computer system or another programable device. In various other instances, these instructions may be implemented by an electronic device, e.g., a device,comprising a memory and at least one processor operatively connected to the memory in which the one or more processors are configured to execute the instructions.Click here to view the patent on USPTO website.
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Patents are granted by the government in order to protect the idea. It grants the inventor the sole rights to create, use and market the invention. Society gains when new technologies are brought to the market. These benefits may be realized directly as people are able to perform feats previously thought impossible, or indirectly through the opportunities that innovation provides (business growth, employment).
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There are many kinds of patents, and understanding them is essential to protecting your invention. Utility patents cover new techniques and machines. Design patents cover ornamental designs. Utility patents are the most effective and shield the owner from copies and competitors. Most often the utility patents are granted for improvements or modifications to existing inventions. Utility patents can also be used to enhance or modify existing inventions. For instance, a process patent will be able to cover actions or methods of performing an action, while chemical compositions will comprise the combination of ingredients.
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The first step in getting your patent is to conduct the patent search. You can do a google patent search or do a USPTO search. After the patent application has been filed, the product covered by the application can be described as patent-pending. you can find the patent application online on the public pair. Once the patent office has approved your application, you will be able do an examination of the patent number to identify the patent granted. Your product is now patent-able. It is also possible to use the USPTO search engine. Check out the following article for more information. Patent lawyers or a patent attorney can advise you on the procedure. Patents in the United States are granted by the US trademark and patent office or the United States patent office. The office also examines trademark applications.
Are you interested in similar patents? These are the steps:
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- What are the terms and phrases in the field of technology used to define the nature of an invention? A technical dictionary can help you locate the right phrases.
2. Use these terms to find pertinent Cooperative Patent Classifications for your invention at the Classification Text Search Tool. To determine the best classification for your invention, go through the resulting classification’s class Schemes (class schedules). If you don’t see any results using the Classification Text Search, you might want to think about substituting the words that describe your invention with synonyms.
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4. Retrieve patent documents with the CPC classification from the Patents Full-Text and Image Database. By focusing your search on abstracts and illustrations, you can narrow down your search to find the most relevant patent publications.
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- Korean Intellectual Property Rights Information Service (KIPRIS)
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To review your search, you can hire a registered patent attorney to assist. A preliminary search will help one better prepare to talk about their invention and other related inventions with a professional patent attorney. In addition, the attorney will not spend too much time or money on patenting basics.