Invalidity dossier
US 5468948
Hand-held data terminal and communicator
Current assignee: Intermec IP Corp
Added 9/24/2026, 1:59:47 AM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
US5468948 — Hand-Held Data Terminal and Communicator
Title: Hand-held data terminal and communicator
Patent number: US5468948A
Application number: US08/264,820
Inventors: Steven E. Koenck; Phillip Miller; Darald R. Schultz
Original assignee: Norand Corp. (current assignee listed: Intermec IP Corp.)
Prior art date: 1992-09-25 · Filing date: 1994-06-23 · Grant/publication date: 1995-11-21
Status: Expired – Lifetime (anticipated expiration 2012-11-21)
Source: https://patents.google.com/patent/US5468948/en
Purpose. The disclosure "generally relates to hand-held data terminals and more particularly to a hand-held data terminal capable of real time voice and data communication, data collection, and data processing," adaptable for retailers, manufacturers, customer service, sales, and warehouse use.
Plain-language scope. A two-part hinged housing (front section 12, rear section 14, joint 16) whose sections may be disposed in linear, angular, or parallel relation. The front section exterior carries key means (keypad 20) for entering information and display means (display 18). Inside the housing: a low-power frequency-hopping transceiver (22) for receiving and transmitting information; scanning means for optically reading coded information sets; a computer for processing input/output; and battery means for power. The excerpt describes a scanner module 24 with laser light source 26 (e.g., VLD) and detector 28 usable as a long-range wand scanner, and also usable to transmit/receive data with a docking station (34) having docking ports (36) with laser source 38 and detector 40. Power may come from a removable, rechargeable battery pack 44 (nickel-metal-hydride) in compartment 42 with cover 46. Radio communications are described using a GEC Plessey FH radio at 1 Mbps, with 888,889 bps via 217 hops/second and 512 bytes per hop; voice may use 8K sample, 8-bit PCM (64,000 bps), compressible toward 8,000 bps, or estimated 16,000 bps.
Not established by this excerpt. The excerpt is abridged. It does not include the full claim set, detailed description, or drawing reference numerals' complete explanations; it does not establish claim scope, prosecution history, litigation, ownership transfers, validity, or prior art beyond the named concepts. Details of the frequency-hopping synchronization schema (FIGS. 10A–10E, 11A–11C) are only referenced, not explained.
Generated 10/1/2026, 9:30:58 PM
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Litigation summary
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PTAB challenges
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Assignment history
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Prior art
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Obviousness
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Extensions
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Derivative works
Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.