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Trident Microsystems was a fabless semiconductor company that in the 1990s was a well-known supplier of graphics chipsets used in video cards and on motherboards for desktop PCs and laptops. In 2003, it transformed itself into being a supplier of display processors for digital televisions and achieved success starting from 2005, at a time when the global LCD TV market started showing strong growth.It filed for bankruptcy protection in January 2012 and the delisting of its common stock from the NASDAQ stock market was announced shortly thereafter. Wikipedia.


Ma K.,University of Illinois at Chicago | Liang H.,Trident Microsystems | Wu K.,University of Illinois at Chicago
IEEE Transactions on Computers | Year: 2012

Fault-based attacks, which recover secret keys by deliberately introducing fault(s) in cipher implementations and analyzing the faulty outputs, have been proved to be extremely powerful. In this paper, we propose a novel Concurrent Error Detection (CED) scheme to counter fault-based attack against RSA by exploiting its multiplicative homomorphic property. Specifically, the proposed CED scheme verifies if II k i=1E(m i) E(II k i=1mmodn) (n) where E could be either RSA encryption, or decryption, or signature, or verification process. Upon a mismatch, all the ciphertexts will be suppressed. The time overhead is 1/k and k can be used to trade-off the time overhead with memory overhead and output latency. Recognizing that an RSA device could be subject to a combination of several side-channel attacks, the proposed scheme enables an easy divide-and-concur solutionany fine-tuned architecture, for example, a power-attack-resistant architecture, can be equipped with fault-attack resistance easily without disturbing its original resistance. This advantage distinguishes the proposed scheme over the existing countermeasures. © 2012 IEEE. Source


Liu Y.,University of Illinois at Chicago | Liang H.,Trident Microsystems | Wu K.,University of Illinois at Chicago
Proceedings -Design, Automation and Test in Europe, DATE | Year: 2010

This paper studies the dilemma between fault tolerance and energy efficiency in frame-based real-time systems. Given a set of K tasks to be executed on a system that supports L voltage levels, the proposed heuristic-based scheduling technique minimizes the energy consumption of tasks execution when faults are absent, and preserves feasibility under the worst case of fault occurrences. The proposed technique first finds out the optimal solution in a comparable system that supports continuous voltage scaling, then converts the solution to the original system. The runtime complexity is only (LK2). Experimental results show that the proposed approach produces near-optimal results in polynomial time. © 2010 EDAA. Source


Zafarifar B.,Trident Microsystems | Zafarifar B.,TU Eindhoven | Van Den Kerkhof T.,ViNotion | De With P.H.N.,TU Eindhoven
IEEE Transactions on Consumer Electronics | Year: 2012

This paper presents a skin detection algorithm for TV applications, and investigates the feasibility of its real-time implementation on a DSP and an FPGA platform. We present the details of the algorithm, which combines a flexible histogram-based color feature, and a color-constrained texture feature suitable for skin detection. First we show the improvement in detection result, as compared to existing color-only detectors. Then we explore three implementations: (1) full-precision non real-time SW on DSP, (2) reduced-precision real-time SW on DSP, and (3) full-precision realtime hardware on FPGA. We conclude that even though a real-time SW implementation is possible, its quality is sub-optimal and the solution is too expensive for a practical consumer TV system. Therefore, hardware support is indispensable for full-precision realtime execution of the proposed algorithm on HD video. © 2006 IEEE. Source


Patent
Trident Microsystems | Date: 2011-09-30

A system and method to render 3D images from a 2D source are described. An embodiment of a method to render 3D images from a 2D source comprises the steps of providing a graphics rendering device to estimate depth of a 2D image; providing video or graphics textures and depth-maps to describe an object in a 3D scene; creating, in one embodiment, a single view angle and in another preferred embodiment at least two view angles of the 3D scene to represent an intraocular distance using the graphics rendering device; and presenting both of the at least two view angles on a display using the graphics rendering device and especially the commonly available 3D imaging technology of the graphics rendering device.


News Article | June 17, 2009
Site: www.siliconbeat.com

Trident Microsystems said it has finally received notice from Spencer Capital Opportunity Fund of identity of the two nominees Spencer has said it wants to nominate to the chip maker’s board of directors. The names of the dissident nominees were not released. The New York based investment company had put Trident on notice of its intention to nominate its own candidates earlier this year when its founder, Kenneth Shubin Stein, said in a statement March 2: “This is a company whose revenue has deteriorated significantly, product line has lost ground and business model is under enormous pressure. We intend to run a slate of candidates whose interests will be aligned with shareholders and who have the investing and technological expertise to effectively analyze the assets of the company and maximize their value.” According to the press release put out by Trident on Tuesday, Spencer Capital owns 1,000 shares of Trident, whose largest shareholder is now Micronas Semiconductor Holding, a Swiss company that last month acquired 7 million shares of Trident in return for selected assets held by Micronas, including all of its audio processing product lines of of its consumer division. In today’s release, Trident said that its board is evaluating the nomination notice from Spencer. “We welcome the views of our stockholders,” said Trident’s chairman Glen Antle in a statement. “(H)owever, to date, Spencer Capital has not communicated with us regarding any concerns they may have.”

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