Samsung Electronics Co., Ltd. (Suwon-si, KR)
Embodiments are related to the semiconductor device, and more specifically, to the gray-code generator as well as an image sensor comprising the same.
2. Description of Related Art
Counters transform a physical measurement that is effective, such as the brightness of light, strength of sound, and a time, into a digital signal.
The inventions are targeted at the image sensor. They include an pixel sensor that detects incident light and outputs an analog sample signal. A sampler designed for comparing the sampling signal with an output signal that is a ramp and produces the comparison signal with time-axis length information. Gray counter configured to measure the length of the signal while synchronizing it with the clock signal. A second flip-flop configured delay a first clock signal to four times and output another gray signal.
Embodiments can also be directed to a gray counter that produces a gray code count value in synchronization with an alarm signal, such as the first flip-flop that is configured to divide the clock signal by two and create a first gray signalcorresponding to the least significant bit of gray count as well as a Johnson counter configured to divide the clock signal by 4 and output an initial data signal; another flip-flop that is configured to delay the first data signal for the length of one duration of the clock signal, and to output an additional gray code signal as well as a third flip-flop designed to divide the second gray code signal in two and output a third gray code signal. Also, a plurality of flip-flops designed to generate an amount of count above the signal of the third gray based on the clock signal as well as the signal from the third gray code.
Embodiments can also be a gray counter that generates gray code count numbers in the synchronization of a clock signal. These include the following: A replica circuit designed to generate the first gray signal that is a minimum bitgray signal from a first clock signal. Another flip-flop that is configured for delaying a second clocksignal by as long as is possible, and then output two gray codes signals. A third flip-flop that is configured with the ability to divide the third gray code signal by 2 and produce a fourth code signal.Click here to view the patent on USPTO website.
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There are a variety of patents. Understanding the different types is crucial to protect your invention. Patents on utility cover the development of new methods and machines. Design patents cover ornamental designs. Patents for utility are the best option and protect the owner against copycats and other competitors. Frequently, utility patents are issued for improvements or modifications to existing inventions. Utility patents also cover improvements and changes to existing inventions. For example, a process patent covers acts or methods of performing an action, while a chemical composition will include a mixture of ingredients.
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The first step in getting your patent is to do an internet search for patents. You can do a google patent search or do a USPTO search. After the patent application has been filed, the product subject to the patent can be referred to as patent-pending and you can find the patent application on public pair. Once the patent office approves the patent application, you can perform a patent search to locate the issued patent. Your product has now been granted a patent. You can also utilize the USPTO search engine. Check out the following article for more information. It is possible to seek help from a patent lawyer. Patents granted in the United States are granted by the US trademark and patent office, or the United States patent office. The trademark office also evaluates trademark applications.
Are you interested in finding similar patents? Here are the steps you should follow:
1. Create a list of terms to describe your invention based on the purpose, composition and application.
Begin by writing down a concise detailed description of your idea. Avoid using generic terms like “device,” “process,” and “system.” Look for synonyms to the terms you initially chose. Next, take note of significant technical terms and keywords.
Utilize the following questions to help you find key words or concepts.
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- What is the purpose and composition of the invention? What is the physical makeup of the invention?
- What’s the purpose of this invention?
- What are the terms used in technical terminology and terms that describe the nature of an invention? To help you find the right terms, refer to an online dictionary of technical terms.
2. Use these terms to find relevant Cooperative Patent Classifications on the Classification Text Search Tool. If you’re unable to find the right classification for your invention, scan through the classification’s Schemas of classes (class schedules). Consider substituting the words that you’re using for describing your invention, if you don’t get any results from your Classification Text Search with synonyms such as the terms you used in the first step.
3. Review the CPC Classification Definition to verify the accuracy of the CPC classification you’ve discovered. If the classification you have selected includes a blue square with a “D” on its left, the link will lead you to the CPC classification definition. CPC classification definitions can help determine the relevant classification’s scope and therefore you’re certain to choose the one that is relevant. Furthermore the definitions may include research tips and other suggestions that may be useful for further investigation.
4. Find patent documents that have the CPC classification from the Patents Full-Text and Image Database. You can search and narrow down the most relevant patent documents by first focusing on abstract and representative drawings.
5. This selection of patent publication is the best to examine for similarity to your invention. Be sure to read the claims and specification. There are many patents available through contacting the patent examiner and applicant.
6. Find patent applications published in the public domain using the CPC classification you chose in Step 3 of the Applications Full-Text and Image Database. It is also possible to use the same method of search that you used in Step 4 to narrow down your search results to only the most relevant patent applications by reviewing the abstracts and representative drawings on each page. The next step is to review the patent applications that have been published carefully with particular attention paid to the claims, and other drawings.
7. Find additional US patents using keywords searching in PatFT or AppFT databases, classification search of non-U.S. patents in the below, and searching for non-patent patent disclosures in the literature of inventions using internet search engines. Here are a few examples:
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- European Patent Office (EPO) provides esp@cenet to access a network of Europe’s patent databases with access to machine translation of European patents.
- Japan Patent Office (JPO) – with access to machine translations of Japanese patents.
- World Intellectual Property Organization (WIPO) offers PATENTSCOPE with a full-text search of published international patent applications and machine translations for some documents, as well as a list of international patent databases.
- Korean Intellectual Property Rights Information Service (KIPRIS)
- State Intellectual Property Office (SIPO) with machine translation of Chinese patents.
- Other International Intellectual Property Offices with online patent databases include Australia, Canada, Denmark, Finland, France, Germany, Great Britain, India, Israel, Netherlands, Norway, Sweden, Switzerland, and Taiwan.
- Search non-patent literature. Inventions can be made public in many non-patent publications. It is recommended that you search journals, books, websites, technical catalogs, conference proceedings, and other print and electronic publications.
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.