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Dacom

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Adapted from the English Wikipedia article Dacom, available under CC BY-SA 4.0Updated 8 August 2025
Dacom, Inc.
Company typePrivate
IndustryTelecommunications, Information Technology
Founded1966
FounderDaniel Hochman, Don Weber
Area served
United States (initially), later Japan (via Ricoh)
Key people
Daniel Hochman (President), Don Weber (Vice President)
ProductsDigital facsimile machines (e.g., DFC-10, Dacom 111, Dacom 412 Secure Fax)

Dacom, Inc. was established in 1966 by ex-Lockheed engineers Daniel Hochman, serving as President, and Don Weber, Vice President. Their groundbreaking digital image compression innovations, initially created for satellite communication applications, paved the way for the first commercially available digital fax machine and enabled facsimile transmission in under a minute via standard telephone lines. In recognition of their impact, Dacom earned the IR-100 Award in 1973 (now known as the R&D 100 Awards) for the most notable new product in Information Technology. The company's patents and technological advancements form the foundation of today's desktop fax devices.

History

Daniel Hochman, a trailblazer in digital electronics, managed a Lockheed division focused on developing compact television systems for space data transmission during the late 1950s and early 1960s. Collaborating with Donald Weber, the team tackled issues related to transmitting high-resolution images over low-power satellite links by inventing sophisticated data compression methods.

In 1966, seeing commercial opportunities, Hochman and Weber departed Lockheed to launch Dacom (an abbreviation of Data Compression), intending to create digital facsimile machines capable of faster image transmission than analog models produced by competitors such as Xerox and Magnavox. Initial offerings included the DFC-10 and Dacom 111 units. Their compression technology was showcased at the 1970 International Conference on Communications and has remained integral to image digitization processes.

By 1971, Dacom formed a strategic alliance with CBS and Savin to obtain development capital and expand market reach. This collaboration resulted in the formation of Rapifax Company, which took majority ownership of Dacom and handled product marketing. Shortly thereafter, the Dacom 412 Secure Fax was introduced as the first digital facsimile capable of sub-minute transmissions, earning the 1973 IR-100 Best Product of the Year accolade.

Later in 1973, Ricoh acquired a controlling stake in Rapifax by buying CBS’s shares; eventually, Savin’s remaining interest was also sold to Ricoh. Despite legal disputes initiated by Dacom’s founders, Ricoh moved research and manufacturing operations to Japan. Dacom’s technology was subsequently incorporated into Ricoh’s range of fax machines.

Throughout the 1970s, Dacom effectively marketed premium facsimile equipment aimed at corporate clients, government bodies, military communications, and remote newspaper production. The Rapifax 100 model emerged as a dominant product in rapid facsimile transmission during this era.

Patents Assigned to Dacom, Inc.

Patent No. Description Inventors Date granted
FR2053965
CA917571
US4135214
Techniques for adaptive encoding and decoding that minimize transmitted symbols Donald R. Weber 4/16/1971
12/26/1972
1/16/1979
US3868477 Binary facsimile system featuring automatic contrast adjustment Howard Katzman 2/25/1975
GB1409365
US3916095
CA1002175-7
Facsimile data compression utilizing dual-line systems for transmission and reproduction Donald R. Weber
Lou Joseph
Edward A. Poe
Ralph W. Austed
10/8/1975
10/28/1975
12/21/1975
US3965290 Apparatus converting video signals to binary format for image reproduction systems James G. Tisue 6/24/1976
US4000368 Electronic non-uniform clock generator employing a modulo N counter for precise pulse counting James G. Tisue 12/28/1976
US4084196 Electronic halftone generator enabling effective black-and-white facsimile image transmission and reproduction James G. Tisue
Donald R. Weber
Peter A. Johanson
4/11/1978
US4107610 Data processing system converting analog inputs into binary signals for storage, communication, and reconstruction Donald R. Weber 8/15/1978