Ordinarily devices with voice playback chips need time to develop the hardware and software, decide which playback voice to use, and evaluate tone quality. However, in many cases such decisions are not made until just before sample shipments and volume production are to start. Conventional mask-ROM voice synthesis chips require at least 1.5 months until delivery because they require creation of one or more masks with the customer's voice data, and then use that mask in the chip manufacturing process. P2ROM, on the other hand, is a memory that allows data to be written at the final test stage. The chip is kept in an "Assembly Process" bank (1), which is a method of storing the uncompleted device that has finished the wafer manufacturing up to the packaging completed.
"With the ML2216, we can write customer's voice data into the chips and test them after we receive orders, which enables us to deliver the product in as little as two weeks. This means we can reduce the time from order to volume production to one-third, eliminating the need for a special mask step to program the customer data," said Akira Kamo, President of Silicon Solutions Company at Oki Electric. "Because P2ROMs are non volatile memories, it is impossible to falsify information, which makes them suite to security devices with emergency voice guidance capability, such as are used in fire warning machine and gas leak alarm systems."
Going forward, Oki plans to integrate its P2ROM technology with its voice synthesis technology to provide voice LSIs.
(1) Assembly Process bank
Store and manage products that have completed the assembly stage and ready for delivery as factory inventories.
About Oki Electric Industry Co., Ltd.
Founded in 1881, Oki Electric Industry Co., Ltd. is Japan's first telecommunications manufacturer, with its headquarters in Tokyo, Japan. With the corporate vision, "Oki, Network Solutions for a Global Society," Oki provides top-quality products, technologies and solutions to its customers through its info-telecom system business, semiconductor business and printer business. All three businesses function as a collective force to create exciting new products and technologies that satisfy a spectrum of customer needs in various markets. Visit Oki's global web site at http://www.oki.com/.
-- P2ROM is a registered trademark of Oki Electric Industry Co., Ltd. in Japan.
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Oki Electric Industry Co., Ltd. Naomi Takeuchi, 408-737-6479 (Europe and Americas) Email Contact Akiko Horiguchi, +81-3-3580-8950 (Asia and Other Areas) Email Contact