1. IP Multimedia Services Identity Module,
2. IMS Identity Module.

Abbreviation for industrial, scientific, and medical applications (of radio frequency energy).

A Web page feature in which hyperlinks are assigned or "mapped" to different portions of a graphic image.
Note: Users access links by using a mouse to click on mapped areas. ISMAP requests are processed by common gateway interface (CGI) scripts on the server.

International Organization for Standardization

Abbreviation for Internet Society. A nongovernmental, international organization for global cooperation and coordination for The Internet and its internetworking technologies and applications.

A line on a map or chart joining points associated with a constant time difference from the transmitter to receiver of electromagnetic waves, such as radio waves, at all points along the line. [From Weik '89]

1. Of a periodic signal, pertaining to transmission in which the time interval separating any two corresponding transitions is equal to the unit interval or to a multiple of the unit interval.
2. Pertaining to data transmission in which corresponding significant instants of two or more sequential signals have a constant phase relationship.
Note: "Isochronous" and "anisochronous" are characteristics, while… (Read More →)

In a data network where the information-bearer channel rate is higher than the input data signaling rate, transmission performed by interrupting, at controlled intervals, the data stream being transmitted.
Note 1: Isochronous burst transmission enables communication between data terminal equipment (DTE) and data networks that operate at dissimilar data signaling rates, such as when the information-bearer channel rate is higher… (Read More →)

Demodulation in which the time interval separating any two significant instants is equal to the unit interval or a multiple of the unit interval.

The difference between the measured modulation rate and the theoretical modulation rate in a digital system.