ALBANY — Jonathan Cobb, head of a tech company, was sentenced on Oct. 30 in Albany County Court by Judge William Carter to six months in jail, to be served every weekend over the course of a year, as part of his guilty plea to first-degree unlawful imprisonment, a felony.

Cobb, then 51, was originally charged on Feb. 2 with third-degree rape and third-degree criminal sex act, both felonies, after an 18-year-old went to the hospital and said she had been raped by Cobb at his Guilderland home.

Curtis Cox, deputy chief of the Guilderland Police, said at the time of the arrest that the rape charge was based on the victim’s inability to consent due to intoxication.

Cobb’s sentence calls for spending 180 days in jail, each Friday through Sunday, until he has fulfilled the 180-day requirement, minus credit for “good time,” said Albany County District Attorney’s Office spokeswoman Heather Orth. This credit will likely reduce the 60 weekends to about 52, or about a year, she said.

When the sentence is completed, he will have spent the equivalent of about six months in jail, Orth said.

He will also be on probation for five years with sex-offender conditions, although he will not be registered as a sex offender, Orth said.